MAIN SOURCE OF ENERGY FOR LIFE ON EARTH? THE SUN!!

Save this PDF as:

Size: px
Start display at page:

Download "MAIN SOURCE OF ENERGY FOR LIFE ON EARTH? THE SUN!!"

Transcription

1 MAIN SOURCE OF ENERGY FOR LIFE ON EARTH? THE SUN!!

2 THE BASICS OF PHOTOSYNTHESIS Almost all plants are photosynthetic autotrophs, as are some bacteria and protists Autotrophs generate their own organic matter through photosynthesis Sunlight energy is transformed to energy stored in the form of chemical bonds (c) Euglena (d) Cyanobacteria (a) Mosses, ferns, and flowering plants (b) Kelp

3 Light Energy Harvested by Plants & Other Photosynthetic Autotrophs 6 CO H 2 O + light energy C 6 H 12 O O 2

4 Energy needs of life All life needs a constant input of energy Heterotrophs (Animals) get their energy from eating others eat food = other organisms = organic molecules make energy through respiration Autotrophs (Plants) get their energy from self get their energy from sunlight build organic molecules (food) from CO 2 make energy & synthesize sugars through photosynthesis

5 Energy needs of life Heterotrophs consumers Animals Protists fungi most bacteria Autotrophs producers plants photosynthetic bacteria (blue-green algae)

6 How are they connected? Heterotrophs making energy & organic molecules from ingesting organic molecules glucose + oxygen carbon + water + energy dioxide C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP exergonic Autotrophs making energy & organic molecules from light energy carbon + water + energy glucose + oxygen dioxide 6CO 2 + 6H 2 O + light C 6 H 12 O 6 6O energy + 2 endergonic Where s the ATP?

7 Energy cycle sun Photosynthesis plants CO 2 H 2 O glucose O 2 animals, plants Cellular Respiration The Great Circle of Life,Mufasa! ATP

8 Food Chain

9 THE FOOD WEB

10 What does it mean to be a plant Need to collect light energy transform it into chemical energy store light energy in a stable form to be moved around the plant & also saved for a rainy day need to get building block atoms from the environment CO C,H,O,N,P,S 2 produce all organic molecules needed for growth carbohydrates, proteins, lipids, nucleic acids ATP glucose N P K H 2 O

11 Plant structure Obtaining raw materials sunlight leaves = solar collectors CO 2 stomata = gas exchange H 2 O uptake from roots nutrients N, P, K, S uptake from roots

12 stomate transpiration

13 WHY ARE PLANTS GREEN?

14 Electromagnetic Spectrum and Visible Light Gamma rays X-rays UV Infrared & Microwaves Radio waves Visible light Wavelength (nm)

15 WHY ARE PLANTS GREEN? Different wavelengths of visible light are seen by the human eye as different colors. Gamma rays X-rays UV Infrared Microwaves Radio waves Visible light Wavelength (nm)

16 The feathers of male cardinals are loaded with carotenoid pigments. These pigments absorb some wavelengths of light and reflect others. Sunlight minus absorbed wavelengths or colors equals the apparent color of an object.

17 Why are plants green? Transmitted light

18 WHY ARE PLANTS GREEN? Plant Cells have Green Chloroplasts The thylakoid membrane of the chloroplast is impregnated with photosynthetic pigments (i.e., chlorophylls, carotenoids).

19 THE COLOR OF LIGHT SEEN IS THE COLOR NOT ABSORBED Chloroplasts absorb light energy and convert it to chemical energy Light Reflected light Absorbed light Transmitted light Chloroplast

20 What wavelengths of light have the most energy? Red, blues, violets = most Yellows & greens = least

21 AN OVERVIEW OF PHOTOSYNTHESIS Photosynthesis is the process by which autotrophic organisms use light energy to make sugar and oxygen gas from carbon dioxide and water Carbon dioxide Water Glucose Oxygen gas PHOTOSYNTHESIS

22 Who do we have to thank for all of this?? Many scientists but 3 got the ball rolling. Jan van Helmont - water made up mass Joseph Priestley - mint freshened air under jar Jan Ingenhousz - plants needed light to remain alive The complete timeline?

23 What are we looking at today? Stomata (stoma) Pores in a plant s cuticle through which water and gases are exchanged between the plant and the atmosphere. Oxygen (O 2 ) Carbon Dioxide (CO 2 ) Guard Cell Guard Cell

24 Have the ability to open and close. Closed at night & dry days to save water. Open to allow exchange of CO 2 and O 2 When water plentiful guard cells swell. When dry, vacuoles shrink closing stoma

25

26 stomate transpiration

27 The Photosynthesis Equation Light energy O 2 ADP NADP + Sugar CO 2 + H 2 0

28 Light and Pigments What is the role of light and chlorophyll in photosynthesis?

29 Light and Pigments Light and Pigments How do plants capture the energy of sunlight? In addition to water and carbon dioxide, photosynthesis requires light and chlorophyll.

30 Light and Pigments Plants gather the sun's energy with light-absorbing molecules called pigments. The main pigment in plants is chlorophyll. There are two main types of chlorophyll: chlorophyll a chlorophyll b

31 Pigments in Plants Pigments are light-absorbing molecules Different pigments absorb or reflect different colors

32 Chlorophyll a wavelengths absorbed: blue-violet and red Reflects: grass green Wavelength

33 Chlorophyll b Absorbs: blue and orange Reflects: yellow-green An accessory chlorophyll in plants

34 Other pigments in plants Carotenoids-orange Absorb: bluegreen Reflect: yellow-orange

35 FYI Why do leaves change color? As fall comes there are shorter days of sunlight Less photosynthesis means less food for plants. Chlorophyll breaks down and exposes the other colors that were there all along, but were masked by the green chlorophyll.

36 WORKSHEET Absorption of Chlorophyll Photosynthesis: The Action Spectrum for Photosynthesis (experiment link)

37 Estimated Absorption (%) Light and Pigments Chlorophyll absorbs light well in the blue-violet and red regions of the visible spectrum Chlorophyll b Chlorophyll a Wavelength (nm) Wavelength (nm)

38 Estimated Absorption (%) Light and Pigments Chlorophyll does not absorb light well in the green region of the spectrum. Green light is reflected by leaves, which is why plants look green Chlorophyll b Chlorophyll a Wavelength (nm)

39 Light and Pigments Light is a form of energy, so any compound that absorbs light also absorbs energy from that light. When chlorophyll absorbs light, much of the energy is transferred directly to electrons in the chlorophyll molecule, raising the energy levels of these electrons. These high-energy electrons are what make photosynthesis work.

40 8-3 The Reactions of Photosynthesis

41 Inside a Chloroplast Inside a Chloroplast In plants, photosynthesis takes place inside chloroplasts. Plant Chloroplast Plant cells

42 Inside a Chloroplast Chloroplasts contain thylakoids saclike photosynthetic membranes. Single thylakoid Chloroplast

43 Inside a Chloroplast Thylakoids are arranged in stacks known as grana. A singular stack is called a granum. Granum Chloroplast

44 Inside a Chloroplast Proteins in the thylakoid membrane organize chlorophyll and other pigments into clusters called photosystems, which are the lightcollecting units of the chloroplast. Photosystems Chloroplast

45 Chloroplast Diagram Stroma = thick fluid between the thylakoids thylakoids = disks within the chloroplasts granum=stack of thylakoids (grana pl.)

46 Inside a Chloroplast The reactions of photosystems include: the light-dependent reactions and the light-independent reactions, or Calvin cycle. The light-dependent reactions take place within the thylakoid membranes. The Calvin cycle takes place in the stroma, which is the region outside the thylakoid membranes.

47 GRANA What is the difference between grana and granum?

48 STROMA So what s the difference between the stoma and the stroma? STOMA = opening in lower epidermis STROMA = area around thylakoid disks in the chloroplast

49 Chloroplast Diagram Stromal lamella = connect grana D. Outer Membrane Inner Membrane Thylakoid membrane Thylakoid Intermembrane Space space

50 Chloroplasts TEM Note the stacks of thylakoid disks = grana Note area between = stroma

51 Inside a Chloroplast Light H 2 O CO 2 NADP + ADP + P Lightdependent reactions Calvin Cycle cycle Chloroplast O 2 Sugars

52 Electron Carriers Electron Carriers When electrons in chlorophyll absorb sunlight, the electrons gain a great deal of energy. Cells use electron carriers to transport these high-energy electrons from chlorophyll to other molecules.

53 THYLAKOIDS

54 Summary IN

55 Summary OUT

56 Electron Carriers One carrier molecule is NADP +. Electron carriers, such as NADP +, transport electrons. NADP + accepts and holds 2 high-energy electrons along with a hydrogen ion (H + ). This converts the NADP + into NADPH.

57 Nice Little Photosynthesis Movies VCAC: Cellular Processes: Photosynthesis: The Movie VCAC: Cellular Processes: Photosystem II: The Movie

58 Overview of Photosynthesis

59 What happens here? Light Dependent Reaction (LDR) Converts light energy to chemical energy + O 2 Light Independent Reaction (LIR) Assembles sugar molecules using CO 2

60 Where does energy come from? Light Dependent Reaction LDR Uses light energy Light Independent Reaction LIR (Calvin Cycle) uses ATP and NADPH (from LDR)

61 PSI and PSII PSI and PSII animation Another PSI and PSII animation

62 Where is it located in the cell? LDR occurs in thylakoid membranes of chloroplast s grana LIR (aka Calvin cycle) occurs in stroma of chloroplast

63 Final Products of Each? LDR ATP and LIR sugar NADPH Also O 2

64 Electron Carriers The conversion of NADP + into NADPH is one way some of the energy of sunlight can be trapped in chemical form. The NADPH carries high-energy electrons to chemical reactions elsewhere in the cell. These high-energy electrons are used to help build a variety of molecules the cell needs, including carbohydrates like glucose.

65 Light-Dependent Reactions What happens in the light-dependent reactions?

66 Light-Dependent Reactions Light-Dependent Reactions The light-dependent reactions require light. The light-dependent reactions produce oxygen gas and convert ADP and NADP + into the energy carriers ATP and NADPH.

67 Light-Dependent Reactions

68 Light-Dependent Photosynthesis begins when Reactions pigments in photosystem II absorb light, increasing their energy level. Photosystem II

69 Light-Dependent These high-energy electrons Reactions are passed to the electron transport chain. Photosystem II High-energy electron Electron carriers

70 Light-Dependent Enzymes on the thylakoid Reactions membrane break water molecules into: Photosystem II 2H 2 O High-energy electron Electron carriers

71 Light-Dependent hydrogen ions Reactions oxygen atoms energized electrons Photosystem II 2H 2 O + O 2 High-energy electron Electron carriers

72 Light-Dependent Reactions The energized electrons from water replace the high-energy electrons that chlorophyll lost to the electron transport chain. Photosystem II 2H 2 O + O 2 High-energy electron

73 Light-Dependent Reactions As plants remove electrons from water, oxygen is left behind and is released into the air. Photosystem II 2H 2 O + O 2 High-energy electron

74 Light-Dependent Reactions The hydrogen ions left behind when water is broken apart are released inside the thylakoid membrane. Photosystem II 2H 2 O + O 2 High-energy electron

75 Light-Dependent Reactions Energy from the electrons is used to transport H + ions from the stroma into the inner thylakoid space. Photosystem II 2H 2 O + O 2

76 Light-Dependent Reactions High-energy electrons move through the electron transport chain from photosystem II to photosystem I. Photosystem II 2H 2 O + O 2 Photosystem I

77 Light-Dependent Reactions Pigments in photosystem I use energy from light to re-energize the electrons. 2H 2 O + O 2 Photosystem I

78 Light-Dependent Reactions NADP + then picks up these high-energy electrons, along with H + ions, and becomes NADPH. 2H 2 O + O 2 2 NADP + 2 NADPH 2

79 Light-Dependent Reactions As electrons are passed from chlorophyll to NADP +, more H + ions are pumped across the membrane. 2H 2 O + O 2 2 NADP + 2 NADPH 2

80 Light-Dependent Reactions Soon, the inside of the membrane fills up with positively charged hydrogen ions, which makes the outside of the membrane negatively charged. 2H 2 O + O 2 2 NADP + 2 NADPH 2

81 Light-Dependent Reactions The difference in charges across the membrane provides the energy to make ATP. 2H 2 O + O 2 2 NADP + 2 NADPH 2

82 Light-Dependent H + ions cannot cross the membrane Reactions directly. ATP synthase + O 2 2H 2 O 2 NADP + 2 NADPH 2

83 The cell membrane contains a protein called ATP synthase that allows H + ions to pass through it. Light-Dependent Reactions ATP synthase 2H 2 O + O 2 2 NADP + 2 NADPH 2

84 As H + ions pass through ATP synthase, the protein rotates. Light-Dependent Reactions ATP synthase + O 2 2H 2 O 2 NADP + 2 NADPH 2

85 As it rotates, ATP synthase binds ADP and a phosphate group together to produce ATP. Light-Dependent Reactions ATP synthase 2H 2 O + O 2 2 NADP + ADP 2 NADPH 2

86 Because of this system, light-dependent electron transport produces not only high-energy electrons but ATP as well. Light-Dependent Reactions ATP synthase 2H 2 O + O 2 2 NADP + ADP 2 NADPH 2

87 Light-Dependent Reactions The light-dependent reactions use water, ADP, and NADP +. The light-dependent reactions produce oxygen, ATP, and NADPH. These compounds provide the energy to build energycontaining sugars from low-energy compounds.

88 The Calvin Cycle What is the Calvin cycle?

89 Calvin Cycle Occurs in stroma of chloroplasts

90 7.11 Review of Photosynthesis

91 Summary: Calvin Cycle

92 Overall Equation

93 The Calvin Cycle The Calvin Cycle ATP and NADPH formed by the light-dependent reactions contain an abundance of chemical energy, but they are not stable enough to store that energy for more than a few minutes. During the Calvin cycle plants use the energy that ATP and NADPH contain to build high-energy compounds that can be stored for a long time.

94 The Calvin Cycle The Calvin cycle uses ATP and NADPH from the light-dependent reactions to produce high-energy sugars. Because the Calvin cycle does not require light, these reactions are also called the lightindependent reactions.

95 The Calvin Cycle Six carbon dioxide molecules enter the cycle from the atmosphere and combine with six 5-carbon molecules. CO 2 Enters the Cycle

96 The Calvin Cycle The result is twelve 3-carbon molecules, which are then converted into higher-energy forms.

97 The Calvin Cycle The energy for this conversion comes from ATP and high-energy electrons from NADPH. Energy Input ADP 12 NADPH 12 NADP +

98 The Calvin Cycle Two of twelve 3-carbon molecules are removed from the cycle. Energy Input ADP 12 NADPH 12 NADP +

99 The Calvin Cycle The molecules are used to produce sugars, lipids, amino acids and other compounds ADP 12 NADPH 12 NADP + 6-Carbon sugar produced Sugars and other compounds

100 The Calvin Cycle The 10 remaining 3-carbon molecules are converted back into six 5- carbon molecules, which are used to begin the next cycle ADP 6 12 ADP 12 NADPH 12 NADP + 5-Carbon Molecules Regenerated Sugars and other compounds

101 The Calvin Cycle The two sets of photosynthetic reactions work together. The light-dependent reactions trap sunlight energy in chemical form. The light-independent reactions use that chemical energy to produce stable, highenergy sugars from carbon dioxide and water.

102 Factors Affecting Photosynthesis Factors Affecting Photosynthesis Many factors affect the rate of photosynthesis, including: Water Temperature Intensity of light

103 Which equation summarizes photosynthesis? A. water + starch ---> glucose + glucose + glucose B. water + carbon dioxide ---> oxygen + glucose + water C. glucose + oxygen ---> water + carbon dioxide + ATP D. glucose + glucose ---> maltose + water

104 ANSWER B. water + carbon dioxide ---> oxygen + glucose + water

105 In what organelle does photosynthesis occur? A. the nucleus B. chloroplasts C. the vacuole D. the cell wall

106 ANSWER B. Chloroplast

107 QUESTION: Four identical plants are grown under different colored light bulbs. Under which color will the release of oxygen gas be slowest? A. Green B. blue C. orange D. red

108 ANSWER: A. Green

109 QUIZ TIME The reason why ADP + P form ATP in thylakoid membranes is A movement of electrons between photosystem II and photosystem I. B oxidation of water C oxidation of NADPH D absorption of photons by chloroplast pigments E higher concentration of H+ inside versus outside the thylakoid membranes

110 ANSWER E. a higher concentration of H+ ions inside vs. outside the thylakoid membranes

111 QUIZ TIME Water is broken down and the electrons from water pass through photosystem II and photosystem I before adding e- to: A carbon dioxide B NADP+ C plastoquinones D FAD E rubisco

112 ANSWER NADP+ to make higher energy NADPH

113 REVIEW ALL OF CHAPTER 8

114 QUIZ TIME Which of the following would have the smallest effect on the rate of photosynthesis in a green plant? A. carbon dioxide concentration B. light intensity C. oxygen concentration D. water available

115 ANSWER: C. oxygen concentration

116 QUIZ TIME During photosynthetic electron transport, the interior compartment of the thylakoid membranes becomes: A. more concentrated with ATP B. more concentrated with H+ ions C. less concentrated with H+ ions

117 HINT: Distribution of H+ ions Light Rx more inside Dark Rx Even in and out

118 ANSWER More concentrated with H+ ions

119 QUIZ TIME Which of the following is produced during photosynthesis? A. carbon dioxide B. lactic acid C. DNA D. PGAL

120 ANSWER D. PGAL

121 QUIZ TIME Atmospheric oxygen that is inhaled by animals comes from: A. carbon dioxide molecules split during the light reactions B. carbon dioxide split during the dark reactions C. water molecules split during the light reactions D. water molecules split during the dark reactions

122 ANSWER C. water molecules split during the light reactions

123 QUIZ TIME What change occurs during photosynthesis? A. solar energy is converted to chemical energy B. kinetic energy is converted to chemical energy C. chemical energy is converted to radiant energy D. water is converted to chemical energy

124 ANSWER A. solar energy is converted to chemical energy

125 Cuticle Epidermis Guard cells Palisade Phloem Xylem Spongy Mesophyll Stomata Bundle Sheath

126 A=cuticle B=Upper epidermis C=Vein D=Phloem E=xylem F=Palisade layer G=spongy layer H=guard cell I=stomata

127 QUIZ TIME The overall source of energy for photosynthesis is: A. energy from the sun B. energy from ATP C. energy when oxygen is produced

128 ANSWER A. energy from the sun

129 QUIZ TIME What three events occur during the light reactions of photosynthesis? Forming ATP NADP+ to NADPH Fixing CO 2 Releasing O 2

130 ANSWER Forming ATP NADP+ to NADPH Releasing O 2

131 QUIZ TIME Which of the following does not happen in photosystem I? ATP is produced electron transport in the thylakoid membranes light energy is used NADPH is formed

132 HINT

133 ANSWER (which is NOT) NADPH is formed

134 QUIZ TIME Where does the Calvin Cycle take place? Thylakoid membranes of chloroplasts Stroma of chloroplasts Matrix of mitochondria Inner membrane of mitochondria

135 ANSWER Stroma of chloroplasts

136 QUIZ TIME What is the name of the enzyme that causes CO 2 to form glucose? ATPase glucosease rubisco

137 ANSWER rubisco

138 QUIZ TIME What two high energy compounds are required for this reaction? ATP NADH NADPH ADP FADH

139 ANSWER ATP and NADPH

140 QUIZ TIME What is the name of the process in which carbon dioxide is made into glucose? Krebs cycle Calvin cycle Einstein cycle

141 ANSWER CALVIN CYCLE (or sometimes the Calvin-Bensen Cycle)

142 QUIZ TIME Which does NOT happen in the Dark Reaction: using ATP using NADPH using Carbon Dioxide making water

143 ANSWER MAKING WATER

144 QUIZ TIME What are the products of the dark reaction? ATP ADP glucose CO 2 NADP+

145 ANSWER ADP NADP+ glucose

146 QUIZ TIME The reason why ADP + P form ATP in thylakoid membranes is A movement of electrons between photosystem II and photosystem I. B oxidation of water C oxidation of NADPH D absorption of photons by chloroplast pigments E higher concentration of H+ inside versus outside the thylakoid membranes

147 ANSWER a higher concentration of H+ ions inside vs. outside the thylakoid membranes

148 QUIZ TIME During photosynthetic electron transport, the interior compartment of the thylakoid membranes becomes: A. more concentrated with ATP B. more concentrated with H+ ions C. less concentrated with H+ ions

149 ANSWER More concentrated with H+ ions

150 QUIZ TIME The overall source of energy for photosynthesis is: A. energy from the sun B. energy from ATP C. energy when oxygen is produced

151 ANSWER A. energy from the sun

152 QUIZ TIME What three events occur during the light reactions of photosynthesis? Forming ATP NADP+ to NADPH Fixing CO 2 Releasing O 2

153 ANSWER Forming ATP NADP+ to NADPH Releasing O 2

154 QUIZ TIME What is the name of the process in which carbon dioxide is made into glucose? Krebs cycle Calvin cycle Einstein cycle

155 ANSWER CALVIN CYCLE (or sometimes the Calvin-Bensen Cycle)

8-3 The Reactions of Photosynthesis Slide 1 of 51

8-3 The Reactions of Photosynthesis Slide 1 of 51 8-3 The of Photosynthesis 1 of 51 Inside a Chloroplast Inside a Chloroplast In plants, photosynthesis takes place inside chloroplasts. Plant Chloroplast Plant cells 2 of 51 Inside a Chloroplast Chloroplasts

More information

Biology. Slide 1of 51. End Show. Copyright Pearson Prentice Hall

Biology. Slide 1of 51. End Show. Copyright Pearson Prentice Hall Biology 1of 51 8-3 The Reactions of Photosynthesis 2of 51 Inside a Chloroplast Inside a Chloroplast In plants, photosynthesis takes place inside chloroplasts. Plant Chloroplast Plant cells 3of 51 Inside

More information

Photosynthesis and Cellular Respiration. Stored Energy

Photosynthesis and Cellular Respiration. Stored Energy Photosynthesis and Cellular Respiration Stored Energy What is Photosynthesis? plants convert the energy of sunlight into the energy in the chemical bonds of carbohydrates sugars and starches. SUMMARY EQUATION:

More information

Photosynthesis Chapter 8 E N E R G Y T O M A K E F O O D?

Photosynthesis Chapter 8 E N E R G Y T O M A K E F O O D? Photosynthesis Chapter 8 H O W D O E S T H E P L A N T U S E T H E S U N S E N E R G Y T O M A K E F O O D? http://www.youtube.com/watch?v=pe82qtkssh4 Autotroph vs. Heterotroph Autotrophs/Producers-organisms

More information

Biology Slide 1 of 51

Biology Slide 1 of 51 Biology 1 of 51 8-3 The Reactions of Photosynthesis 2 of 51 Inside a Chloroplast 1. In plants, photosynthesis takes place inside chloroplasts. Plant Chloroplast Plant cells 3 of 51 Inside a Chloroplast

More information

Name Date Period PHOTOSYNTHESIS HW REVIEW ENERGY AND LIFE

Name Date Period PHOTOSYNTHESIS HW REVIEW ENERGY AND LIFE 1 Name Date Period PHOTOSYNTHESIS HW REVIEW ENERGY AND LIFE MULTIPLE CHOICE: CIRCLE ALL THE ANSWERS THAT ARE TRUE. THERE MAY BE MORE THAN ONE CORRECT ANSWER! 1. Which molecule stores more than 90 times

More information

Photosynthesis-Review. Pigments. Chloroplasts. Chloroplasts 5. Pigments are located in the thylakoid membranes. An Overview of Photosynthesis

Photosynthesis-Review. Pigments. Chloroplasts. Chloroplasts 5. Pigments are located in the thylakoid membranes. An Overview of Photosynthesis An Overview of Photosynthesis Photosynthesis-Review 1. Photosynthesis uses the energy of sunlight to convert water and carbon dioxide into high-energy sugars and oxygen. 6 CO 2 + 6 H 2 O C 6 H 12 O 6 +

More information

Photosynthesis Practice. 2. Chlorophyll a and b absorb _B -_V and _R wavelengths of light best.

Photosynthesis Practice. 2. Chlorophyll a and b absorb _B -_V and _R wavelengths of light best. Photosynthesis Practice Fill in the blanks. Name Date Period 1. Molecules that collect light energy are called _P. 2. Chlorophyll a and b absorb _B -_V and _R wavelengths of light best. 3. _C is the main

More information

Photosynthesis P P P. Autotrophs and Heterotrophs (page 201) Chemical Energy and ATP (pages 202 203) Chapter 8. Name Class Date

Photosynthesis P P P. Autotrophs and Heterotrophs (page 201) Chemical Energy and ATP (pages 202 203) Chapter 8. Name Class Date Chapter 8 Photosynthesis Section 8 1 Energy and Life (pages 201 203) This section explains where plants get the energy they need to produce food. It also describes the role of the chemical compound ATP

More information

Photosynthesis 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2. An anabolic, endergonic, carbon dioxide (CO 2

Photosynthesis 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2. An anabolic, endergonic, carbon dioxide (CO 2 PHOTOSYNTHESIS Photosynthesis An anabolic, endergonic, carbon dioxide (CO 2 ) requiring process that uses light energy (photons) and water (H 2 O) to produce organic macromolecules (glucose). photons SUN

More information

4.1 Chemical Energy and ATP. KEY CONCEPT All cells need chemical energy.

4.1 Chemical Energy and ATP. KEY CONCEPT All cells need chemical energy. 4.1 Chemical Energy and ATP KEY CONCEPT All cells need chemical energy. 4.1 Chemical Energy and ATP Molecules in food store chemical energy in their bonds. Starch molecule Glucose molecule The chemical

More information

Photosynthesis (Life from Light)

Photosynthesis (Life from Light) Photosynthesis Photosynthesis (Life from Light) Energy needs of life All life needs a constant input of energy o Heterotrophs (consumers) Animals, fungi, most bacteria Get their energy from other organisms

More information

Equation for Photosynthesis

Equation for Photosynthesis Photosynthesis Definition The process by which cells harvest light energy to make sugars (glucose). -Sugar is used to power the process of cellular respiration, which produces the ATP that cells utilize

More information

Green pigment that absorbs solar energy and is important in photosynthesis

Green pigment that absorbs solar energy and is important in photosynthesis PHOTOSYNTHESIS REVIEW SHEET FOR TEST Part A: Match the terms below with the correct description Chlorophyll Chloroplast Electromagnetic spectrum Electron transport chain Grana Light-dependant reactions

More information

3. In what part of the chloroplast do the light-dependent reactions of photosynthesis take place? Chloroplast. Name Class Date

3. In what part of the chloroplast do the light-dependent reactions of photosynthesis take place? Chloroplast. Name Class Date The Chloroplast In plants, photosynthesis takes place in chloroplasts. Inside chloroplasts are saclike membranes called thylakoids. These thylakoids are arranged in stacks. A stack of thylakoids is called

More information

Photosynthesis Part I: Overview & The Light-Dependent Reactions

Photosynthesis Part I: Overview & The Light-Dependent Reactions Photosynthesis Part I: Overview & The Light-Dependent Reactions Photosynthesis: The BIG Picture Photosynthesis is the process by which PHOTOAUTOTROPHS convert the energy in SUNLIGHT into the energy stored

More information

VII. NARRATION FOR PHOTOSYNTHESIS: TRANSFORMING LIGHT TO LIFE

VII. NARRATION FOR PHOTOSYNTHESIS: TRANSFORMING LIGHT TO LIFE 7. Why do leaves turn color in the fall? 8. How are photosystems I and II different? How are they related? 9. What is the source of energy for dark reactions? 10. Describe the C3 cycle. 11. What is the

More information

Bioenergetics Module A Anchor 3

Bioenergetics Module A Anchor 3 Bioenergetics Module A Anchor 3 Key Concepts: - ATP can easily release and store energy by breaking and re-forming the bonds between its phosphate groups. This characteristic of ATP makes it exceptionally

More information

1. f. Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of sugar from carbon dioxide.

1. f. Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of sugar from carbon dioxide. 1. The fundamental life processes of plants and animals depend on a variety of chemical reactions that occur in specialized areas of the organism s cells. As a basis for understanding this concept: 1.

More information

CHAPTER 6: PHOTOSYNTHESIS CAPTURING & CONVERTING ENERGY

CHAPTER 6: PHOTOSYNTHESIS CAPTURING & CONVERTING ENERGY CHAPTER 6: PHOTOSYNTHESIS CAPTURING & CONVERTING ENERGY 2 PROCESSES OF PHOTOSYNTHESIS Photosynthesis is actually 2 processes: light reactions - convert solar energy (sunlight) to chemical energy (ATP &

More information

2. 1. What are the three parts of an ATP molecule? (100 points)

2. 1. What are the three parts of an ATP molecule? (100 points) Photosynthesis Date Created: 12/8/14, 11:22:50 AM Questions: 34 Date Modified: 12/17/14, 8:27:08 AM 1. ATP & Photosynthesis Review Game 30 Multiple Choice Questions Final Question Correct Answers = +$100

More information

Photosynthesis. Photosynthesis: Converting light energy into chemical energy. Photoautotrophs capture sunlight and convert it to chemical energy

Photosynthesis. Photosynthesis: Converting light energy into chemical energy. Photoautotrophs capture sunlight and convert it to chemical energy Photosynthesis: Converting light energy into chemical energy Photosynthesis 6 + 12H 2 O + light energy Summary Formula: C 6 H 12 O 6 + 6O 2 + 6H 2 O 6 + 6H 2 O C 6 H 12 O 6 + 6O 2 Photosythesis provides

More information

> C 6 H 12 O 6 + 6O 2

> C 6 H 12 O 6 + 6O 2 Photosynthesis- is the process that converts light energy into chemical energy. This chemical energy is usually a carbohydrate. Only photoautrotrops can do photosynthesis. Heterotrophs must obtain their

More information

Chloroplasts and Mitochondria

Chloroplasts and Mitochondria Name: KEY Period: Chloroplasts and Mitochondria Plant cells and some Algae contain an organelle called the chloroplast. The chloroplast allows plants to harvest energy from sunlight to carry on a process

More information

A B C D. Name Class Date

A B C D. Name Class Date Chapter 8 Photosynthesis Chapter Test A Multiple Choice Write the letter that best answers the question or completes the statement on the line provided. 1. Which of the following is an autotroph? a. mushroom

More information

8.3 The Process of Photosynthesis

8.3 The Process of Photosynthesis 8.3 The Process of Photosynthesis Lesson Objectives Describe what happens during the light-dependent reactions. Describe what happens during the light-independent reactions. Identify factors that affect

More information

Jan Baptisa van Helmont (1648)

Jan Baptisa van Helmont (1648) Instructions To help you navigate these slides, you should set your viewer to display thumbnails of these slides. On many viewers, this can be done by pressing the F4 key. The slides should be viewed in

More information

Biology 20 Cellular Respiration Review NG Know the process of Cellular Respiration (use this picture if it helps):

Biology 20 Cellular Respiration Review NG Know the process of Cellular Respiration (use this picture if it helps): Biology 20 Cellular Respiration Review NG Know the process of Cellular Respiration (use this picture if it helps): 1) How many ATP molecules are produced for each glucose molecule used in fermentation?

More information

Photosynthesis. Name. Light reactions Calvin cycle Oxidation Reduction Electronegativity Photosystem Electron carrier NADP+ Concentration gradient

Photosynthesis. Name. Light reactions Calvin cycle Oxidation Reduction Electronegativity Photosystem Electron carrier NADP+ Concentration gradient Vocabulary Terms Photoautotroph Chemoautotroph Electromagnetic spectrum Wavelength Chloroplast Thylakoid Stroma Chlorophyll Absorption spectrum Photosynthesis Light reactions Calvin cycle Oxidation Reduction

More information

Lecture 7 Outline (Ch. 10)

Lecture 7 Outline (Ch. 10) Lecture 7 Outline (Ch. 10) I. Photosynthesis overview A. Purpose B. Location II. The light vs. the dark reaction III. Chloroplasts pigments A. Light absorption B. Types IV. Light reactions A. Photosystems

More information

Photosynthesis: Harvesting Light Energy

Photosynthesis: Harvesting Light Energy Photosynthesis: Harvesting Light Energy Importance of Photosynthesis A. Ultimate source of energy for all life on Earth 1. All producers are photosynthesizers 2. All consumers and decomposers are dependent

More information

Chapter 9 Review Worksheet Cellular Respiration

Chapter 9 Review Worksheet Cellular Respiration 1 of 5 11/9/2011 8:11 PM Name: Hour: Chapter 9 Review Worksheet Cellular Respiration Energy in General 1. Differentiate an autotroph from a hetertroph as it relates to obtaining energy and the processes

More information

* Is chemical energy potential or kinetic energy? The position of what is storing energy?

* Is chemical energy potential or kinetic energy? The position of what is storing energy? Biology 1406 Exam 2 - Metabolism Chs. 5, 6 and 7 energy - capacity to do work 5.10 kinetic energy - energy of motion : light, electrical, thermal, mechanical potential energy - energy of position or stored

More information

Photosynthesis January 23 Feb 1, 2013 WARM-UP JAN 23/24. Mr. Stephens, IB Biology III 1

Photosynthesis January 23 Feb 1, 2013 WARM-UP JAN 23/24. Mr. Stephens, IB Biology III 1 WARM-UP JAN 23/24 Mr. Stephens, IB Biology III 1 Photosynthesis & Cellular Respiration What is the connection between Photosynthesis and Cellular Respiration? Energy Production Inorganic Molecules Specialized

More information

Name Class Date. Figure 8-1

Name Class Date. Figure 8-1 Chapter 8 Photosynthesis Chapter Test A Multiple Choice Write the letter that best answers the question or completes the statement on the line provided. 1. Which of the following is an autotroph? a. mushroom

More information

Chapter 4. Photosynthesis and Cellular Respiration Worksheets. 63 www.ck12.org

Chapter 4. Photosynthesis and Cellular Respiration Worksheets. 63 www.ck12.org Chapter 4 Photosynthesis and Cellular Respiration Worksheets (Opening image copyright by Derek Ramsey, http://en.wikipedia.org/wiki/file:monarch_butterfly_ Danaus_plexippus_Feeding_Down_3008px.jpg, and

More information

ATP & Photosynthesis Honors Biology

ATP & Photosynthesis Honors Biology ATP & Photosynthesis Honors Biology ATP All cells need for life. Some things we use energy for are: Moving Thinking Sleeping Breathing Growing Reproducing ENERGY Labeled Sketch: The principal chemical

More information

CELL/ PHOTOSYNTHESIS/ CELLULAR RESPIRATION Test 2011 ANSWER 250 POINTS ANY WAY IN WHICH YOU WANT

CELL/ PHOTOSYNTHESIS/ CELLULAR RESPIRATION Test 2011 ANSWER 250 POINTS ANY WAY IN WHICH YOU WANT CELL/ PHOTOSYNTHESIS/ CELLULAR RESPIRATION Test 2011 ANSWER 250 POINTS ANY WAY IN WHICH YOU WANT Completion: complete each statement. (1 point each) 1. All cells arise from. 2. The basic unit of structure

More information

Biology I. Chapter 8/9

Biology I. Chapter 8/9 Biology I Chapter 8/9 NOTEBOOK #1 Interest Grabber Suppose you earned extra money by having a part-time job. At first, you might be tempted to spend all of the money, but then you decide to open a bank

More information

pathway that involves taking in heat from the environment at each step. C.

pathway that involves taking in heat from the environment at each step. C. Study Island Cell Energy Keystone Review 1. Cells obtain energy by either capturing light energy through photosynthesis or by breaking down carbohydrates through cellular respiration. In both photosynthesis

More information

Review Questions Photosynthesis

Review Questions Photosynthesis Review Questions Photosynthesis 1. Describe a metabolic pathway. In a factory, labor is divided into small individual jobs. A carmaker, for example, will have one worker install the front windshield, another

More information

Unit 5 Photosynthesis and Cellular Respiration

Unit 5 Photosynthesis and Cellular Respiration Unit 5 Photosynthesis and Cellular Respiration Advanced Concepts What is the abbreviated name of this molecule? What is its purpose? What are the three parts of this molecule? Label each part with the

More information

PHOTOSYNTHESIS AND CELLULAR RESPIRATION

PHOTOSYNTHESIS AND CELLULAR RESPIRATION reflect Wind turbines shown in the photo on the right are large structures with blades that move in response to air movement. When the wind blows, the blades rotate. This motion generates energy that is

More information

Question. Which of the following are necessary in order for photosynthesis to occur? A. water B. light energy C. carbon dioxide D.

Question. Which of the following are necessary in order for photosynthesis to occur? A. water B. light energy C. carbon dioxide D. Photosynthesis is the process through which plants convert light energy to chemical energy in order to produce food The energy involved in photosynthesis is eventually stored in the chemical bonds of molecules

More information

Like The Guy From Krypton Photosynthesis: Energy from Sunlight What Is Photosynthesis?

Like The Guy From Krypton Photosynthesis: Energy from Sunlight What Is Photosynthesis? Like The Guy From Krypton Photosynthesis: Energy from Sunlight What Is Photosynthesis? Photosynthesis: synthesis from light The broad outline: Plants take in CO 2 and release water and O 2 Light is required

More information

4.2 Overview of Photosynthesis

4.2 Overview of Photosynthesis KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy. Radiant Energy Chemical Energy A. Organisms are classified according to how they obtain energy. 1. Autotroph/Producers

More information

AP Bio Photosynthesis & Respiration

AP Bio Photosynthesis & Respiration AP Bio Photosynthesis & Respiration Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. What is the term used for the metabolic pathway in which

More information

Name Date Class. energy phosphate adenine charged ATP chemical bonds work ribose

Name Date Class. energy phosphate adenine charged ATP chemical bonds work ribose Energy in a Cell Reinforcement and Study Guide Section.1 The Need for Energy In your textbook, read about cell energy. Use each of the terms below just once to complete the passage. energy phosphate adenine

More information

Evolution of Metabolism. Introduction. Introduction. Introduction. How Cells Harvest Energy. Chapter 7 & 8

Evolution of Metabolism. Introduction. Introduction. Introduction. How Cells Harvest Energy. Chapter 7 & 8 How ells Harvest Energy hapter 7 & 8 Evolution of Metabolism A hypothetical timeline for the evolution of metabolism - all in prokaryotic cells!: 1. ability to store chemical energy in ATP 2. evolution

More information

-Loss of energy -Loss of hydrogen from carbons. -Gain of energy -Gain of hydrogen to carbons

-Loss of energy -Loss of hydrogen from carbons. -Gain of energy -Gain of hydrogen to carbons Cellular Respiration- Equation C6H12O6 + 6O2 6CO2 +6H20 and energy -The energy is released from the chemical bonds in the complex organic molecules -The catabolic process of releasing energy from food

More information

Photosynthesis Reactions. Photosynthesis Reactions

Photosynthesis Reactions. Photosynthesis Reactions Photosynthesis Reactions Photosynthesis occurs in two stages linked by ATP and NADPH NADPH is similar to NADH seen in mitochondria; it is an electron/hydrogen carrier The complete process of photosynthesis

More information

Cellular Energy. 1. Photosynthesis is carried out by which of the following?

Cellular Energy. 1. Photosynthesis is carried out by which of the following? Cellular Energy 1. Photosynthesis is carried out by which of the following? A. plants, but not animals B. animals, but not plants C. bacteria, but neither animals nor plants D. all living organisms 2.

More information

2. Which type of macromolecule contains high-energy bonds and is used for long-term energy storage?

2. Which type of macromolecule contains high-energy bonds and is used for long-term energy storage? Energy Transport Study Island 1. During the process of photosynthesis, plants use energy from the Sun to convert carbon dioxide and water into glucose and oxygen. These products are, in turn, used by the

More information

2. PHOTOSYNTHESIS. The general equation describing photosynthesis is light + 6 H 2 O + 6 CO 2 C 6 H 12 O 6 + 6 O 2

2. PHOTOSYNTHESIS. The general equation describing photosynthesis is light + 6 H 2 O + 6 CO 2 C 6 H 12 O 6 + 6 O 2 2. PHOTOSYNTHESIS Photosynthesis is the process by which light energy is converted to chemical energy whereby carbon dioxide and water are converted into organic molecules. The process occurs in most algae,

More information

Electron Transport Generates a Proton Gradient Across the Membrane

Electron Transport Generates a Proton Gradient Across the Membrane Electron Transport Generates a Proton Gradient Across the Membrane Each of respiratory enzyme complexes couples the energy released by electron transfer across it to an uptake of protons from water in

More information

Ch. 4 ATP & Photosynthesis

Ch. 4 ATP & Photosynthesis Name: Biology G Vocabulary Section 4.1 Ch. 4 ATP & Photosynthesis Period: ADP Adenosine Diphosphate ATP Adenosine Triphosphate Chemosynthesis Vocabulary Section 4.2 Photosynthesis Chlorophyll Thylakoid

More information

SOME Important Points About Cellular Energetics by Dr. Ty C.M. Hoffman

SOME Important Points About Cellular Energetics by Dr. Ty C.M. Hoffman SOME Important Points About Cellular Energetics by Dr. Ty C.M. Hoffman An Introduction to Metabolism Most biochemical processes occur as biochemical pathways, each individual reaction of which is catalyzed

More information

Chapter 10: Photosynthesis

Chapter 10: Photosynthesis Name Period Chapter 10: Photosynthesis This chapter is as challenging as the one you just finished on cellular respiration. However, conceptually it will be a little easier because the concepts learned

More information

Overview of Photosynthesis

Overview of Photosynthesis OpenStax-CNX module: m44447 1 Overview of Photosynthesis OpenStax College This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 By the end of this section,

More information

A. Incorrect! No, while this statement is correct, it is not the best answer to the question.

A. Incorrect! No, while this statement is correct, it is not the best answer to the question. Biochemistry - Problem Drill 18: Photosynthesis No. 1 of 10 1. What is photosynthesis? Select the best answer. (A) Photosynthesis happens in the chloroplasts. (B) Light absorption by chlorophyll induces

More information

Metabolism Poster Questions

Metabolism Poster Questions Metabolism Poster Questions Answer the following questions concerning respiration. 1. Consider the mitochondrial electron transport chain. a. How many hydrogen ions can be pumped for every NADH? b. How

More information

Photosynthesis and (Aerobic) Respiration. Photosynthesis

Photosynthesis and (Aerobic) Respiration. Photosynthesis Photosynthesis and (Aerobic) Respiration These two processes have many things in common. 1. occur in organelles that seem to be descended from bacteria (endosymbiont theory): chloroplasts and mitochondria

More information

Topic 3: Nutrition, Photosynthesis, and Respiration

Topic 3: Nutrition, Photosynthesis, and Respiration 1. Base your answer to the following question on the chemical reaction represented below and on your knowledge of biology. If this reaction takes place in an organism that requires sunlight to produce

More information

Chapter 9 Cellular Respiration

Chapter 9 Cellular Respiration Chapter 9 Cellular Respiration Electrons carried in NADH Mitochondrion Glucose Glycolysis Pyruvic acid Krebs Cycle Electrons carried in NADH and FADH 2 Electron Transport Chain Cytoplasm Mitochondrion

More information

The chemical energy used for most cell processes is carried by ATP.

The chemical energy used for most cell processes is carried by ATP. 4.1 CHEMICAL ENERGY AND ATP Study Guide KEY CONCEPT All cells need chemical energy. VOCABULARY ATP ADP chemosynthesis MAIN IDEA: The chemical energy used for most cell processes is carried by ATP. 1. What

More information

Photosynthesis takes place in three stages:

Photosynthesis takes place in three stages: Photosynthesis takes place in three stages: Light-dependent reactions Light-independent reactions The Calvin cycle 1. Capturing energy from sunlight 2. Using energy to make ATP and NADPH 3. Using ATP and

More information

ecture 16 Oct 7, 2005

ecture 16 Oct 7, 2005 Lecture utline ecture 16 ct 7, 005 hotosynthesis 1 I. Reactions 1. Importance of Photosynthesis to all life on earth - primary producer, generates oxygen, ancient. What needs to be accomplished in photosynthesis

More information

Photosynthesis (CO 2 + H 2 O C 6 H 12 O 6 + O 2 )

Photosynthesis (CO 2 + H 2 O C 6 H 12 O 6 + O 2 ) The vital role of A This is the energy-rich compound that is the source of energy for all living things. It is a nucleotide, comprising a 5C sugar (ribose); an organic base (adenosine); and 3 phosphate

More information

b. What is/are the overall function(s) of photosystem II?

b. What is/are the overall function(s) of photosystem II? Use your model and the information in Chapter 10 of Biology, 7th edition, to answer the questions. 1. The various reactions in photosynthesis are spatially segregated from each other within the chloroplast.

More information

BCOR 011 Exam 2, 2004

BCOR 011 Exam 2, 2004 BCOR 011 Exam 2, 2004 Name: Section: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1. According to the first law of thermodynamics, A. the universe

More information

8.2 Cells and Energy. What is photosynthesis? Photosynthesis takes place in the chloroplasts. CHAPTER 8. Solar cells and chloroplasts

8.2 Cells and Energy. What is photosynthesis? Photosynthesis takes place in the chloroplasts. CHAPTER 8. Solar cells and chloroplasts CHAPTER 8 CELL PROCESSES 8.2 Cells and Energy To stay alive, you need a constant supply of energy. You need energy to move, think, grow, and even sleep. Where does that energy come from? It all starts

More information

The correct answer is d C. Answer c is incorrect. Reliance on the energy produced by others is a characteristic of heterotrophs.

The correct answer is d C. Answer c is incorrect. Reliance on the energy produced by others is a characteristic of heterotrophs. 1. An autotroph is an organism that a. extracts energy from organic sources b. converts energy from sunlight into chemical energy c. relies on the energy produced by other organisms as an energy source

More information

Cell. (1) This is the most basic unit of life inside of our bodies.

Cell. (1) This is the most basic unit of life inside of our bodies. Cytology Overview Cell (1) This is the most basic unit of life inside of our bodies. ATP (2) Each of our cell s requires energy in order to carry out its day to day func>ons. This is the energy all cells

More information

A level workbook. A2 level student guide. Brian Banks

A level workbook. A2 level student guide. Brian Banks A level workbook Photosynthesis A2 level student guide Brian Banks A level guide. Photosynthesis 2 Using the workbook This workbook is designed to provide the student with notes, illustrations, questions

More information

While reading these chapters, constantly ask yourself, How is this information helping me to understand how cells get energy from food?

While reading these chapters, constantly ask yourself, How is this information helping me to understand how cells get energy from food? Biology 160 Reading Guide 07: Photosynthesis NAME: This is DUE: Come prepared to share your findings with your group. ** Fill this reading guide out as you are reading the chapters. This will help you

More information

Visualizing Cell Processes

Visualizing Cell Processes Visualizing Cell Processes A Series of Five Programs produced by BioMEDIA ASSOCIATES Content Guide for Program 3 Photosynthesis and Cellular Respiration Copyright 2001, BioMEDIA ASSOCIATES www.ebiomedia.com

More information

AUTOTROPHES AND HETEROTROPHES

AUTOTROPHES AND HETEROTROPHES WHAT IS CLIL??? Da alcuni anni nel Liceo Linguistico Da Vinci di Alba viene sperimentata la metodologia CLIL (Content and Language Integrated Learning), anticipando quanto previsto dalla recente riforma

More information

Summary of Metabolism. Mechanism of Enzyme Action

Summary of Metabolism. Mechanism of Enzyme Action Summary of Metabolism Mechanism of Enzyme Action 1. The substrate contacts the active site 2. The enzyme-substrate complex is formed. 3. The substrate molecule is altered (atoms are rearranged, or the

More information

APh/BE161: Physical Biology of the Cell Winter 2009 Recap on Photosynthesis Rob Phillips

APh/BE161: Physical Biology of the Cell Winter 2009 Recap on Photosynthesis Rob Phillips APh/BE161: Physical Biology of the Cell Winter 2009 Recap on Photosynthesis Rob Phillips Big picture: why are we doing this? A) photosynthesis will explain shortly, b) more generally, interaction of light

More information

Cellular Respiration: Practice Questions #1

Cellular Respiration: Practice Questions #1 Cellular Respiration: Practice Questions #1 1. Which statement best describes one of the events taking place in the chemical reaction? A. Energy is being stored as a result of aerobic respiration. B. Fermentation

More information

(e) i. 22. (a) ii (b) iv (c) v (d) iii

(e) i. 22. (a) ii (b) iv (c) v (d) iii Chapter 5 Review, pages 246 251 Knowledge 1. a 2. b 3. b 4. d 5. d 6. b 7. b 8. b 9. b 10. a 11. True 12. False. Chlorophyll a, when excited, becomes oxidized as it passes an electron to a primary electron

More information

Chapter 10. Photosynthesis

Chapter 10. Photosynthesis Chapter 10 Photosynthesis Lecture Outline Overview: The Process That Feeds the Biosphere Life on Earth is solar powered. The chloroplasts of plants use a process called photosynthesis to capture light

More information

Bio 101 Section 001: Practice Questions for First Exam

Bio 101 Section 001: Practice Questions for First Exam Do the Practice Exam under exam conditions. Time yourself! MULTIPLE CHOICE: 1. The substrate fits in the of an enzyme: (A) allosteric site (B) active site (C) reaction groove (D) Golgi body (E) inhibitor

More information

Photosynthesis. Chemical Energy (e.g. glucose) - They are the ultimate source of chemical energy for all living organisms: directly or indirectly.

Photosynthesis. Chemical Energy (e.g. glucose) - They are the ultimate source of chemical energy for all living organisms: directly or indirectly. Photosynthesis Light Energy transduction Chemical Energy (e.g. glucose) - Only photosynthetic organisms can do this (e.g. plants) - They are the ultimate source of chemical energy for all living organisms:

More information

Photosynthesis. Monday March 30. Announcements. Agenda

Photosynthesis. Monday March 30. Announcements. Agenda Announcements Monday March 30 By the end of class today, I should be able to 1) Summarize Unit 6 learning targets 2) Identify the key structures involved in photosynthesis 3) Describe the process of photosynthesis

More information

Multiple Choice Identify the choice that best completes the statement or answers the question.

Multiple Choice Identify the choice that best completes the statement or answers the question. AP bio fall 2014 final exam prep Multiple Choice Identify the choice that best completes the statement or answers the question. 1. According to the first law of thermodynamics, a. the energy of a system

More information

Chapter 10. Photosynthesis. Concept 10.1 Photosynthesis converts light energy to the chemical energy of food

Chapter 10. Photosynthesis. Concept 10.1 Photosynthesis converts light energy to the chemical energy of food Chapter 10 Photosynthesis Lecture Outline Overview: The Process That Feeds the Biosphere Life on Earth is solar powered. The chloroplasts of plants use a process called photosynthesis to capture light

More information

Photosynthesis and Cellular Respiration

Photosynthesis and Cellular Respiration unit 20C 20c Photosynthesis and Cellular Respiration For life to continue on Earth, two conditions must be met. First, matter must be continuously cycled. With few exceptions, the number of atoms on Earth

More information

Today is Thursday, October 29 th, 2015

Today is Thursday, October 29 th, 2015 In This Lesson: Photosynthesis (Lesson 2 of 3) Today is Thursday, October 29 th, 2015 Pre-Class: Why are plants green? (Or why are the green parts of them green, at least?) Other stuff: Grab a [small]

More information

Cellular Respiration Worksheet 1. 1. What are the 3 phases of the cellular respiration process? Glycolysis, Krebs Cycle, Electron Transport Chain.

Cellular Respiration Worksheet 1. 1. What are the 3 phases of the cellular respiration process? Glycolysis, Krebs Cycle, Electron Transport Chain. Cellular Respiration Worksheet 1 1. What are the 3 phases of the cellular respiration process? Glycolysis, Krebs Cycle, Electron Transport Chain. 2. Where in the cell does the glycolysis part of cellular

More information

Carbon Hydrogen Oxygen Nitrogen

Carbon Hydrogen Oxygen Nitrogen Concept 1 - Thinking Practice 1. If the following molecules were to undergo a dehydration synthesis reaction, what molecules would result? Circle the parts of each amino acid that will interact and draw

More information

Life on earth would be impossible without photosynthesis.

Life on earth would be impossible without photosynthesis. 10 Photosynthesis Concept Outline 10.1 What is photosynthesis? The Chloroplast as a Photosynthetic Machine. The highly organized system of membranes in chloroplasts is essential to the functioning of photosynthesis.

More information

AP BIOLOGY CHAPTER 7 Cellular Respiration Outline

AP BIOLOGY CHAPTER 7 Cellular Respiration Outline AP BIOLOGY CHAPTER 7 Cellular Respiration Outline I. How cells get energy. A. Cellular Respiration 1. Cellular respiration includes the various metabolic pathways that break down carbohydrates and other

More information

Figure 10.1 How does sunlight help build the trunk, branches, and leaves of this broadleaf tree? photosynthesis Autotrophs (Figure 10.

Figure 10.1 How does sunlight help build the trunk, branches, and leaves of this broadleaf tree? photosynthesis Autotrophs (Figure 10. 10 Photosynthesis Key Concepts 10.1 Photosynthesis converts light energy to the chemical energy of food 10.2 The light reactions convert solar energy to the chemical energy of and NADPH 10.3 The Calvin

More information

PLANT PHYSIOLOGY. Az Agrármérnöki MSc szak tananyagfejlesztése TÁMOP-4.1.2-08/1/A-2009-0010

PLANT PHYSIOLOGY. Az Agrármérnöki MSc szak tananyagfejlesztése TÁMOP-4.1.2-08/1/A-2009-0010 PLANT PHYSIOLOGY Az Agrármérnöki MSc szak tananyagfejlesztése TÁMOP-4.1.2-08/1/A-2009-0010 The light reactions of the photosynthesis Photosynthesis inhibiting herbicides Overview 1. Photosynthesis, general

More information

REVIEW UNIT 3: METABOLISM (RESPIRATION & PHOTOSYNTHESIS) SAMPLE QUESTIONS

REVIEW UNIT 3: METABOLISM (RESPIRATION & PHOTOSYNTHESIS) SAMPLE QUESTIONS Period Date REVIEW UNIT 3: METABOLISM (RESPIRATION & PHOTOSYNTHESIS) SAMPLE QUESTIONS A. Sample Multiple Choice Questions Complete the multiple choice questions to review this unit. 1. The carbon that

More information

CELLS: PLANT CELLS 20 FEBRUARY 2013

CELLS: PLANT CELLS 20 FEBRUARY 2013 CELLS: PLANT CELLS 20 FEBRUARY 2013 Lesson Description In this lesson we will discuss the following: The Cell Theory Terminology Parts of Plant Cells: Organelles Difference between plant and animal cells

More information

Harvesting Energy: Glycolysis and Cellular Respiration. Chapter 8

Harvesting Energy: Glycolysis and Cellular Respiration. Chapter 8 Harvesting Energy: Glycolysis and Cellular Respiration Chapter 8 Overview of Glucose Breakdown The overall equation for the complete breakdown of glucose is: C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP The

More information

1. Enzymes. Biochemical Reactions. Chapter 5: Microbial Metabolism. 1. Enzymes. 2. ATP Production. 3. Autotrophic Processes

1. Enzymes. Biochemical Reactions. Chapter 5: Microbial Metabolism. 1. Enzymes. 2. ATP Production. 3. Autotrophic Processes Chapter 5: Microbial Metabolism 1. Enzymes 2. ATP Production 3. Autotrophic Processes 1. Enzymes Biochemical Reactions All living cells depend on biochemical reactions to maintain homeostasis. All of the

More information