Unit 5 Photosynthesis and Cellular Respiration

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1 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 proper number from the parts you listed below Draw an arrow to where the energy is What organelle recycles this molecule? stored. What is the job of this organelle in the cell? Is this organelle part of photosynthesis or cellular respiration? What type of organisms use photosynthesis? What type of organisms use cellular respiration? Characteristic Oxygen is a waste product Carbon dioxide is a waste product Energy is supplied to cells A form of nutrition in green plants Chloroplasts are needed for this to occur Mitochondria are needed for this to occur Leaf cells of green plants make food Sunlight is needed for this to occur Animals do this Plants do this This is needed for cell to grow Photosynthesis Cellular Respiration Both What is the equation for photosynthesis? + + = and What is the equation for cellular respiration? + = and and

2 Which process is a build up process? Which process is a break down process? Photosynthesis occurs in what organelle? Cellular respiration occurs in what organelle? 3 things that go in: (REACTANTS) things that come out: (PRODUCTS) things that go in: (REACTANTS) things that come out: (PRODUCTS) What is the ULTIMATE source of all energy??? Photosynthesis Organelle: Color this oval green Write the word SUGAR inside this oval Cellular Respiration Organelle: Color this oval red Write the word ATP inside this oval

3 Photosynthesis: What type of organism uses this? Organelle: Reactants: 1. Products: Purpose: 1 st part of reaction: (also called: ) Breaks apart: Creates: 2 nd part of reaction: Creates: Cellular Respiration: What type of organism uses this? Organelle: Reactants: 1. Products: Purpose: 1 st part of reaction: Breaks apart: Creates: 2 nd part of reaction: Creates: Can animals use the carbon that is in the air? What would happen if plants did not pull carbon out of the air? Can animals use light energy?

4 During photosynthesis, light energy is converted to: A. kinetic energy B. chemical energy C. potential energy D. electrical energy Almost every molecule of oxygen in the air was produced by: A. photosynthesis B. cellular respiration C. photosynthesis and cellular respiration D. neither process Metabolic processes that require oxygen are called: A. aerobic B. anaerobic Which of the following is NOT a part of cellular respiration? A. breaking of bonds B. glycolysis C. Calvin cycle D. Krebs cycle The energy in glucose CANNOT be released by: A. glycolysis B. burning C. respiration D. photosynthesis Anaerobic respiration makes ATP than aerobic. A. more B. less Energy from ATP is released when an enzyme called ATPase A. breaks the end phosphate off an ATP molecule B. builds an ATP molecule C. breaks the rechargeable prokaryotes apart D. builds a new prokaryote Disk-shaped structures inside a chloroplast that contain photosynthetic pigments are called: A. Krebs cycles B. Thylakoids C. Carbohydrates D. Synthesizers The process by which autotrophs convert light energy to chemical energy is called: A. photosynthesis B. oxidation C. pigmentation D. photosystemizing A molecule that absorbs certain light wavelengths and reflects others is a: A. photosystem B. matrix C. refraction structure D. pigment What are the most common photosynthetic pigments in plants? A. chloroplasts B. stroma C. chlorophylls D. thylakoids Leaves appear green because the green portion of light A. changes to heat B. is absorbed C. is reflected D. is destroyted All organic molecules contain carbon atoms that ultimately can be traced back in the food chain to: A. the bodies of heterotrophs B. carbon dioxide from the atmosphere C. water absorbed by plants D. the carbon that comes from the sun

5 Excess sugars are usually produced during photosynthesis and may be stored as: A. starch B. protein C. enzymes D. water The source of oxygen produced during photosynthesis is: A. carbon dioxide B. air C. water D. glucose Earth s atmosphere acts like the glass walls and roof of a greenhouse. It lets in the light of the sun. The light energy then changes into heat energy. The heat energy does not move easily out through the atmosphere, just as heat does not escape easily from a greenhouse. As a result, Earth, like the greenhouse, stays warm. The way the atmosphere helps warm Earth is called the greenhouse effect. Perhaps you have heard that the greenhouse effect can cause a problem if too much heat is trapped. Extra heat is trapped because Earth s atmosphere is changing. The amount of carbon dioxide in the atmosphere is increasing. Some of the extra carbon dioxide is produced by burning fuels. Some of these fuels include wood, coal, oil, and natural gas. Also, when trees and other plants are destroyed, the problem gets worse. Living plants use up some carbon dioxide through photosynthesis. When the plants are destroyed, the carbon dioxide level continues to rise. Why is burning of forests a double problem? How would planting trees lessen the greenhouse effect? In an experiment to determine whether green plants take in CO 2, a biologist filled a large beaker with aquarium water to which she added bromothymol blue. She exhaled CO 2 into the solution of bromothymol blue to turn it yellow. Then she placed a sprig of Elodea (a plant) into two test tubes. She left a third test tube without Elodea to serve as a control. She added the yellow bromothymol solution to all three test tubes and placed a stopper in each. Next, she placed all the test tubes in sunlight. After several hours in sunlight, the bromothymol solution in the test tubes with the Elodea turned blue. The bromothymol solution in the control remained yellow. What conclusion can be drawn from the observations? Explain: Use the following terms to finish the sentences: Nutrient Demand Store Supply Reactions Food Releasing Bloodstream ATP Energy In order to do biological work, the cells of organisms need a steady supply of. All the energy needed for life processes is obtained from. By the time ingested food reaches your, it has been broken down into

6 molecules that can enter your cells. Cell then break down the food molecules, energy. All the available energy cannot be used immediately. To balance energy and, cells energy in the bonds of. These molecules can be called the cell s energy currency. Graph A demonstrates that the rate of photosynthesis: A. decreases in response to increasing light intensity B. increases indefinitely in response to increasing light intensity C. increases in response to increasing light intensity, but only to a certain point D. is unaffected by changes in light intensity Taken together, these graphs demonstrate that: A. photosynthesis is independent of environmental influences B. increases in light intensity cause increases in temperature C. as the rate of photosynthesis increases, the temperature of the plant decreases D. the rate of photosynthesis is affected by changes in the plant s environment What 2 things are formed when cellular respiration breaks apart a molecule of glucose? and Where is energy lost in this system? Which part of the photosynthesis / cellular respiration cycle is NOT recycled? How many carbon atoms are in a molecule of glucose? Photosynthesis uses light as the energy source. What would chemosynthesis use as an energy source? What kinds of organisms might perform chemosynthesis? What macromolecule is produced from photosynthesis and chemosynthesis?

7 Label the parts of a chloroplast using the following terms: (hint: look this up in the biology textbooks) Stroma Thylakoid Grana Inner Membrane Outer Membrane Thylakoid Space Which element is being measured on a ph scale? When the concentration of this element goes up, the value on the ph scale goes. Does alkaline mean acidic or basic? Two species of bacteria produce different respiratory end products. Species A always produces ATP, CO 2 and H 2 O. Species B always produces ATP, ethyl alcohol, and CO 2. Which conclusion can correctly be drawn from this information? A. Only species A is aerobic B. Only species B is aerobic C. Species A and B are both anaerobic D. Species A and B are both aerobic Why does lactic acid accumulate in muscle during strenuous exercise? Why are plants necessary for animals to exist? (give 3 reasons)

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