1. In most animal cells, a complex network of proteins provides which of the following?

Size: px
Start display at page:

Download "1. In most animal cells, a complex network of proteins provides which of the following?"

Transcription

1 Organic Molecules and Water 1. In most animal cells, a complex network of proteins provides which of the following? A. organization B. shape C. movement D. all of these 2. Technology Enhanced Questions are not available in Word format. 3. All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon? Carbon atoms are highly reactive and form unstable bonds with any available atom. A. Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms. B. Carbon atoms are very stable and do not easily form bonds with other atoms. C. Carbon atoms can bond with many other kinds of atoms to form very stable molecules. D. 4. Sugars such as glucose, fructose, and ribose are examples of. A. proteins B. nucleic acids C. lipids D. carbohydrates

2 5. Nucleic acids, proteins, and other large biological molecules are known as polymers because A. they are the base units used in the formation of plastics. B. they all contain only ionic bonds. C. they contain many small, repeating subunits bonded together. D. they all have the capability of functioning as enzymes. 6. Carbohydrates are composed of which three elements? A. oxygen, sulfur, and phosphorus B. carbon, nitrogen, and phosphorus C. carbon, hydrogen, and oxygen D. oxygen, hydrogen, and nitrogen

3 7. Nucleic acids are biological polymers that are comprised of nucleotide monomers covalently bonded together. The picture above shows two monomer units of a nucleic acid chain. What are the components that make up each nucleotide monomer? A. glucose, a phophate group, and an amino acid B. a five-carbon sugar, a phosphate group, and an amino acid C. a five-carbon sugar, a phosphate group, and a nitrogenous base D. glucose, a phosphate group, and a nitrogenous base 8. Organic macromolecules called are insoluble in water, are often found in biological membranes and other waterproof coverings, and have the ability to store energy for extended periods of time. A. proteins B. nucleic acids C. lipids D. carbohydrates

4 9. Lipids are organic macromolecules that serve a variety of purposes. What is the most important role of lipids? A. to build muscles B. to metabolize sugar C. to oxygenate blood D. to store energy 10. Which of the following best describes a carbohydrate? A. B. C. D. Carbohydrates are composed of amino acid monomers and are involved in cell signaling, cell transport, immune responses, and the cell cycle. Carbohydrates are organic macromolecules that are insoluble in water and have the ability to store energy for extended periods of time. Carbohydrates always consist of a five-carbon sugar, a nitrogenous base, and one or more phosphate groups and are used to store genetic information. Carbohydrates are organic macromolecules that are made up of carbon, hydrogen, and oxygen atoms and are used for energy storage or as structural molecules. 11. Which of the following are examples of nucleic acids? A. saturated fats and unsaturated fats B. DNA and RNA C. glucose and starch D. collagen and keratin

5 12. All living things contain carbon. Which of the following statements are true about carbon atoms? I. Each carbon atom can form single bonds with up to four other carbon atoms. II. Each carbon atom can form double bonds with up to two other carbon atoms. III. Carbon atoms can join together to form chains or rings. IV. A single molecule of some compounds can contain thousands of carbon atoms. A. II and III only B. I and III only C. I, II, and III only D. I, II, III, and IV 13. A is a kind of lipid that can store energy for a long period of time. These lipids are made up of long chains of carbon and oxygen atoms bonded to a backbone structure. A. protein B. carbohydrate C. fat D. nucleic acid 14. Technology Enhanced Questions are not available in Word format. 15. A large carbohydrate molecule is composed of several subunits, such as glucose. An example of a large carbohydrate molecule is. A. glycogen B. starch C. cellulose D. all of these

6 16. Which of the following is true about protein molecules? Protein molecules are made up of strands of DNA joined together by amino acid sequences. A. The shape and folded structure of a protein molecule are important in determining its function. B. The sequence of amino acids that make up a protein molecule do not affect its function. C. Protein molecules have many functions in the body, including the storage of genetic information. D. 17. Carbohydrates, such as glucose, are excellent sources of immediate energy for living organisms. More complex carbohydrates, such as glycogen and starch, can also be used for the long term storage of energy. However, carbohydrates play other vital roles, too. Which of the following describes another common use for carbohydrates? A. Enzymes help speed up metabolic reactions. B. Keratin provides support in hair, nails, feathers, hooves, and some animal shells. C. Cellulose is used as a structural component in plant cell walls. D. Collagen is a major component in cartilage and tendons. 18. Carbon atoms have four electrons in their outer shell. This means that a single carbon atom can form up to bonds with other atoms. A. eight B. two C. six D. four 19. What role do ATP and NADH play in living cells? A. They provide structural support to cell membranes. B. They are involved in cell-to-cell signaling. C. They also store and transfer information. D. They store and transfer energy. 20. Protein molecules are composed of long chains of. A. amino acids B. DNA C. RNA D. ribosomes

7 21. Water is the most abundant molecule found in living organisms. Most mammals, in fact, are approximately 70% water by weight. About two-thirds of this water is present inside cells. The other one-third is present outside cells (e.g., in blood plasma or other body fluids). Why is water so important to cells? A. Water is stored in the cells to be used when the organism gets thirsty. B. The main structural component found in plasma membranes and cell walls is water. C. Almost all the chemical reactions in life processes occur in solutions with water. D. Water determines which proteins are translated from the cellular DNA. 22. Nitrogen atoms are part of the structure of some organic molecules, such as all amino acids and some modified carbohydrates. What other organic molecules contain nitrogen? A. cellulose B. fatty acids C. nucleotides D. starch

8 23. Examine the diagram of the enzyme below: How does the structure of this enzyme help with its function? A. Since the enzyme is larger than the substrate, catalytic reactions can occur within the enzyme itself. B. The enzyme's shape complements the substrate's shape, so it only catalyzes specific reactions. C. Since the enzyme's shape matches the substrate's shape, it catalyzes only reverse reactions. D. The enzyme's active site is amorphous and can change its shape to fit any substrate. 24. Monosaccharides are the simplest form of carbohydrates. They can be combined to form more complex carbohydrates known as polysaccharides, which are typically used for long term energy storage within a cell. Based on the information above, it can be concluded that complex organic molecules cannot contain more than one carbon atom. A. simple organic molecules are not necessary for the life processes of an organism. B. simple organic molecules can be organized into much longer, more complex molecules. C. complex organic molecules can only be formed by the polymerization of inorganic molecules. D.

9 25. Cellular processes are carried out by many different types of molecules, mostly proteins. The function of each protein molecule depends on its shape which, in turn, is determined by the protein's specific sequence of. A. triglycerides B. amino acids C. nucleotides D. monosaccharides 26. Water is important to plant cells because it is used as one of the reactants in the process of photosynthesis. What is another reason why water is important to plant cells? A. Water is a major structural component found in plant cell walls. B. Water signals plant DNA to start transcription and translation. C. Water can be used as a substitute for glucose in times of distress. D. Water helps to maintain turgidity in plant cells. 27. The characteristics of all organisms and viruses are determined by the instructions carried in. A. hydrogen bonds B. nucleic acids C. phosphoric acids D. sugar bases 28. Nucleic acids are one of the four major macromolecules. The main functions of nucleic acids are to A. act as enzymes, cell signals, and structural support for the cell. B. store and transport energy and structural components in the cell. C. aid in development, the immune system, and blood clotting. D. carry genetic material and create structures inside the cell.

10 29. Suppose that the temperature in the ecosystem below dips below freezing. What would happen to the fish swimming in the lake? A. Ice would form on the surface of the lake and insulate the fish. B. Ice would only form on the bottom of the lake, so the fish would be okay. C. The fish would die because the lake would freeze solid. D. The fish would move more rapidly to increase their body temperature. 30. A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of? A. proteins B. nucleic acids C. lipids D. carbohydrates Answers 1. D D 4. D 5. C 6. C 7. C 8. C 9. D 10. D 11. B 12. D 13. C D 16. B 17. C 18. D 19. D 20. A 21. C

11 22. C 23. B 24. C 25. B 26. D 27. B 28. D 29. A 30. C Explanations 1. In most animal cells, a complex network of proteins provides organization, shape, and movement. In all cells, other than very primitive ones, the network of proteins provides organization and shape. Most of these structural proteins that provide organization and shape are fibrous proteins, such as actin and tubulin. Most of the motor proteins are made up of myosin and kinesin Carbon atoms can bond with many other kinds of atoms to form very stable molecules. This is because carbon atoms have four electrons in their outer shells, and all four are available for bonding. Carbon can share these electrons in single bonds with up to four other atoms to form very stable structures. Alternatively, carbon can form double bonds with up to two other atoms by sharing two electrons with each. Carbon can also form a combination of double and single bonds, as long as no more than four electrons are donated. 4. Sugars such as glucose, fructose, and ribose are all examples of monosaccharides, or simple carbohydrates. Carbohydrates are organic macromolecules that are made up of carbon, hydrogen, and oxygen atoms. These atoms are combined in a ratio of 1 carbon atom : 2 hydrogen atoms : 1 oxygen atom Simple carbohydrates can bond together to make polysaccharides, or larger, more complex carbohydrates, such as starch or cellulose. Carbohydrates are typically used for energy storage or as structural molecules. 5. Nucleic acids, proteins, and other large biological molecules are known as polymers because they contain many small, repeating subunits bonded together. For example, proteins contain many amino acid monomers covalently bonded together, and nucleic acids contain many nucleotide monomers covalently bonded together. 6. Carbohydrates, like sugars and starches, are composed of carbon, hydrogen, and oxygen. 7. Nucleotide monomers contain a five-carbon sugar, a phosphate group, and a nitrogenous base. In DNA, the five-carbon sugar is deoxyribose and the nitrogenous base could be adenine, thymine, cytosine, or guanine. In RNA, the five-carbon sugar is ribose and the nitrogenous base could be adenine, uracil, cytosine, or guanine.

12 Glucose is a six-carbon sugar found in other biological polymers like starch and cellulose. Amino acids are the monomer units of proteins. 8. Organic macromolecules called lipids are insoluble in water which is why lipids are often found in biological membranes and other waterproof coverings. Lipids also play a vital role in insulation, regulating which substances can or cannot enter a cell, and they have the ability to store energy for extended periods of time. 9. Lipids are found as structural components of cell membranes and can also serve as signaling molecules. Their most important role, however, is to store energy. In fact, lipids store over twice as much energy (9 kcal/gram) as carbohydrates or proteins (4 kcal/gram). 10. Carbohydrates are organic macromolecules that are made up of carbon, hydrogen, and oxygen atoms. These atoms are combined in a ratio of 1 carbon atom : 2 hydrogen atoms : 1 oxygen atom Carbohydrates may be simple or complex and are typically used for energy storage or as structural molecules. Examples of carbohydrates include glucose, cellulose, starch, and fructose. 11. There are two main types of nucleic acids - ribonucleic acids (RNA) and deoxyribonucleic acids (DNA). These nucleic acids are different because their five-carbon sugars are different. RNA contains ribose, and DNA contains deoxyribose. DNA and RNA also have different functions. DNA stores genetic information and encodes the sequences of all the cell's proteins whereas RNA is involved in the direct production of the proteins. 12. Carbon atoms have four electrons in their outer shells, and all four are available for bonding. Carbon can share these electrons in single bonds with up to four other atoms. Alternatively, carbon can form double bonds with up to two other atoms by sharing two electrons with each. Or, carbon can instead form a combination of double and single bonds, so long as it donates no more than four electrons. As a result of carbon's ability to bond with itself, carbon atoms can form chain-shaped or ring-shaped molecules. The backbones of carbon molecules can be of any size and may contain from one carbon atom to thousands of carbon atoms. 13. A fat is a kind of lipid that can store energy for a long period of time. Fats are made up of long chains of carbon and oxygen atoms bonded to a backbone structure. This backbone structure is often glycerol. Fats are important because they are a major source of energy. Since they contain even more carbon-hydrogen bonds than carbohydrates, fatty tissue has the ability to store energy for extended periods of time Polysaccharides, or large carbohydrate molecules, are polymers that are made up of monosaccharide subunits. Starch, cellulose, and glycogen are all examples of large carbohydrate molecules. Starch, cellulose, and glycogen are all composed of glucose subunits linked in different ways. Starches have branched chains of glucose subunits and are used as food storage for plants. Glycogen has more highly branched chains of glucose than starch and is used by animals instead of plants. Cellulose is a mostly straight chain of glucose subunits and is used to form the cell wall of plants. 16. Protein molecules are composed of long chains of amino acids and perform many functions in the human body. The function of a protein molecule is determined by the sequence of its amino acids and its shape/folded structure.

13 Proteins do not, however, store genetic information. Genetic information is stored by sequences of DNA. 17. In addition to being an energy source for living organisms, carbohydrates play a structural role, as well. Cellulose, for example, is a carbohydrate found in plant cell walls. Keratin, collagen, and enzymes are all examples of proteins, not carbohydrates. 18. Carbon atoms have four electrons in their outer shells, and all four are available for bonding. Carbon can share these electrons in single bonds with up to four other atoms to form very stable structures. Alternatively, carbon can form double bonds with up to two other atoms by sharing two electrons with each. Carbon can also form a combination of double and single bonds, as long as no more than four electrons are donated. 19. ATP is a monomeric nucleotide with three consecutive phosphate groups attached rather than one. These phosphate groups are joined by high energy phosphate-to-oxygen-to-phosphate covalent bonds that can provide energy to activities in the cell that need energy. NADH is a dinucleotide molecule that can store energy obtained from the breakdown of food molecules. This energy will later be transferred to a series of molecules to synthesize more ATP when cells need it. 20. There are over 20 different kinds of amino acids, which, when connected in long chains, form protein molecules. These long chains are usually folded into specific conformations. The sequence of amino acids and the shape of the chain are a result of attractions between the chain's parts. 21. Water is an extremely important molecule to cells because almost all the chemical reactions in life processes occur in solutions with water. Without water, processes such as photosynthesis and cellular respiration, or even simpler processes such as diffusion and osmosis, could not occur. Also, cells would be unable to manufacture and transport ATP to provide energy for the organism. Water is an essential molecule to all living things. 22. All nucleotides are made up of three component compounds: a 5-carbon sugar (ribose or deoxyribose), a phosphate group, and a nitrogenous base. The nitrogenous bases are a group of compounds with a complex one- or two-ring structure made up of carbon and nitrogen atoms in single and double bond combinations. 23. The shape of an enzyme determines how it works. Most enzymes have a surface with one or more deep folds. The folds make pockets which are called active sites. The active sites match folds in the substrate's surface, like a key matches a lock, so the enzyme only catalyzes specific reactions. Once an enzyme binds to a substrate, the amount of energy needed to start a chemical reaction with the substrate is reduced. 24. Carbohydrates may be simple or complex. Simple carbohydrates are also known as monosaccharides. Sugars such as glucose, fructose, and ribose are all examples of monosaccharides. Monosaccharides can be combined to form more complex carbohydrates known as polysaccharides. Glycogen, starch, and cellulose are all examples of polysaccharides. These compounds are typically used for long term energy storage or as structural molecules.

14 Therefore, it can be concluded that simple organic molecules can be organized into much longer, more complex molecules. 25. Amino acids are the monomers of proteins. The function of a protein depends on its shape which is determined by the protein's specific sequence of amino acids. These sequences of amino acids are, in turn, coded by the sequences of nucleotides in the organism's DNA. 26. Plant cells must retain their turgidity, or rigid structure, in order to effectively undergo photosynthesis, because if a plant's stems or leaves wilt, the surfaces of the leaves will not be able to properly absorb energy from the Sun. Inside of plant cells are large vacuoles that hold water. These vacuoles can take up 30-90% of the total volume of the plant cell. The water in these vacuoles helps to maintain turgidity in the plant cells. 27. The characteristics of all organisms and viruses are determined by the instructions carried in nucleic acids. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The chemical and structural properties of nucleic acids determine how the genetic information that underlies heredity is both encoded in genes and replicated. 28. The main functions of nucleic acids are to carry genetic material and create structures inside the cell. A nucleic acid is a macromolecule that is made up of chains of nucleotides. The two main types of nucleic acids are DNA and RNA. 29. Most solids are more dense than their liquid forms. Ice, however, is unique in that it is less dense than liquid water and is able to float on surfaces of bodies of water, such as lakes and oceans. When ice forms on the surfaces of lakes and oceans, it serves as a layer of insulation. This prevents the water bodies from freezing solid and also protects organisms, such as fish, that live within them. 30. Carbohydrates and nucleic acids are extremely polar due to the large number of oxygen atoms in these organic molecules. Polar organic molecules are able to form hydrogen bonds with the polar water molecules, allowing them to dissolve easily in water. In contrast, lipids have very little oxygen, and are mainly nonpolar. Also, lipids are less dense than water. Due to these two characteristics, the lipids form a layer above the water in the mixture.

BIOLOGICAL MOLECULES OF LIFE

BIOLOGICAL MOLECULES OF LIFE BIOLOGICAL MOLECULES OF LIFE C A R B O H Y D R A T E S, L I P I D S, P R O T E I N S, A N D N U C L E I C A C I D S The Academic Support Center @ Daytona State College (Science 115, Page 1 of 29) Carbon

More information

A disaccharide is formed when a dehydration reaction joins two monosaccharides. This covalent bond is called a glycosidic linkage.

A disaccharide is formed when a dehydration reaction joins two monosaccharides. This covalent bond is called a glycosidic linkage. CH 5 Structure & Function of Large Molecules: Macromolecules Molecules of Life All living things are made up of four classes of large biological molecules: carbohydrates, lipids, proteins, and nucleic

More information

The Molecules of Cells

The Molecules of Cells The Molecules of Cells I. Introduction A. Most of the world s population cannot digest milk-based foods. 1. These people are lactose intolerant because they lack the enzyme lactase. 2. This illustrates

More information

Biochemistry of Cells

Biochemistry of Cells Biochemistry of Cells 1 Carbon-based Molecules Although a cell is mostly water, the rest of the cell consists mostly of carbon-based molecules Organic chemistry is the study of carbon compounds Carbon

More information

Lecture Overview. Hydrogen Bonds. Special Properties of Water Molecules. Universal Solvent. ph Scale Illustrated. special properties of water

Lecture Overview. Hydrogen Bonds. Special Properties of Water Molecules. Universal Solvent. ph Scale Illustrated. special properties of water Lecture Overview special properties of water > water as a solvent > ph molecules of the cell > properties of carbon > carbohydrates > lipids > proteins > nucleic acids Hydrogen Bonds polarity of water

More information

Carbon-organic Compounds

Carbon-organic Compounds Elements in Cells The living substance of cells is made up of cytoplasm and the structures within it. About 96% of cytoplasm and its included structures are composed of the elements carbon, hydrogen, oxygen,

More information

Name: Hour: Elements & Macromolecules in Organisms

Name: Hour: Elements & Macromolecules in Organisms Name: Hour: Elements & Macromolecules in Organisms Most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. These four elements constitute about 95% of your body weight. All compounds

More information

Chapter 3 Molecules of Cells

Chapter 3 Molecules of Cells Bio 100 Molecules of cells 1 Chapter 3 Molecules of Cells Compounds containing carbon are called organic compounds Molecules such as methane that are only composed of carbon and hydrogen are called hydrocarbons

More information

Chemical Basis of Life Module A Anchor 2

Chemical Basis of Life Module A Anchor 2 Chemical Basis of Life Module A Anchor 2 Key Concepts: - Water is a polar molecule. Therefore, it is able to form multiple hydrogen bonds, which account for many of its special properties. - Water s polarity

More information

Biological molecules:

Biological molecules: Biological molecules: All are organic (based on carbon). Monomers vs. polymers: Monomers refer to the subunits that, when polymerized, make up a larger polymer. Monomers may function on their own in some

More information

How To Understand The Chemistry Of Organic Molecules

How To Understand The Chemistry Of Organic Molecules CHAPTER 3 THE CHEMISTRY OF ORGANIC MOLECULES 3.1 Organic Molecules The chemistry of carbon accounts for the diversity of organic molecules found in living things. Carbon has six electrons, four of which

More information

4. Which carbohydrate would you find as part of a molecule of RNA? a. Galactose b. Deoxyribose c. Ribose d. Glucose

4. Which carbohydrate would you find as part of a molecule of RNA? a. Galactose b. Deoxyribose c. Ribose d. Glucose 1. How is a polymer formed from multiple monomers? a. From the growth of the chain of carbon atoms b. By the removal of an OH group and a hydrogen atom c. By the addition of an OH group and a hydrogen

More information

Elements & Macromolecules in Organisms

Elements & Macromolecules in Organisms Name: Date: Per: Table # Elements & Macromolecules in rganisms Most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. These four elements constitute about 95% of your body weight.

More information

Elements in Biological Molecules

Elements in Biological Molecules Chapter 3: Biological Molecules 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Elements in Biological Molecules Biological macromolecules are made almost entirely of just 6 elements: Carbon (C)

More information

Organic Compounds. Essential Questions: What is Organic? What are the 4 major Organic Compounds? How are they made? What are they used for?

Organic Compounds. Essential Questions: What is Organic? What are the 4 major Organic Compounds? How are they made? What are they used for? Organic Compounds Essential Questions: What is Organic? What are the 4 major Organic Compounds? How are they made? What are they used for? Aristotle: Francesco Redi: What do we already know? Spontaneous

More information

Proteins and Nucleic Acids

Proteins and Nucleic Acids Proteins and Nucleic Acids Chapter 5 Macromolecules: Proteins Proteins Most structurally & functionally diverse group of biomolecules. : o Involved in almost everything o Enzymes o Structure (keratin,

More information

Chapter 3: Biological Molecules. 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids

Chapter 3: Biological Molecules. 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Chapter 3: Biological Molecules 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Elements in Biological Molecules Biological macromolecules are made almost entirely of just 6 elements: Carbon (C)

More information

10.1 The function of Digestion pg. 402

10.1 The function of Digestion pg. 402 10.1 The function of Digestion pg. 402 Macromolecules and Living Systems The body is made up of more than 60 % water. The water is found in the cells cytoplasm, the interstitial fluid and the blood (5

More information

The Molecules of Life - Overview. The Molecules of Life. The Molecules of Life. The Molecules of Life

The Molecules of Life - Overview. The Molecules of Life. The Molecules of Life. The Molecules of Life The Molecules of Life - Overview The Molecules of Life The Importance of Carbon Organic Polymers / Monomers Functions of Organic Molecules Origin of Organic Molecules The Molecules of Life Water is the

More information

Chapter 5. The Structure and Function of Macromolecule s

Chapter 5. The Structure and Function of Macromolecule s Chapter 5 The Structure and Function of Macromolecule s Most Macromolecules are polymers: Polymer: (poly: many; mer: part) Large molecules consisting of many identical or similar subunits connected together.

More information

Chapter 2. The Chemistry of Life Worksheets

Chapter 2. The Chemistry of Life Worksheets Chapter 2 The Chemistry of Life Worksheets (Opening image courtesy of David Iberri, http://en.wikipedia.org/wiki/file:camkii.png, and under the Creative Commons license CC-BY-SA 3.0.) Lesson 2.1: Matter

More information

Disaccharides consist of two monosaccharide monomers covalently linked by a glycosidic bond. They function in sugar transport.

Disaccharides consist of two monosaccharide monomers covalently linked by a glycosidic bond. They function in sugar transport. 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

Keystone Review Practice Test Module A Cells and Cell Processes. 1. Which characteristic is shared by all prokaryotes and eukaryotes?

Keystone Review Practice Test Module A Cells and Cell Processes. 1. Which characteristic is shared by all prokaryotes and eukaryotes? Keystone Review Practice Test Module A Cells and Cell Processes 1. Which characteristic is shared by all prokaryotes and eukaryotes? a. Ability to store hereditary information b. Use of organelles to control

More information

Carbohydrates, proteins and lipids

Carbohydrates, proteins and lipids Carbohydrates, proteins and lipids Chapter 3 MACROMOLECULES Macromolecules: polymers with molecular weights >1,000 Functional groups THE FOUR MACROMOLECULES IN LIFE Molecules in living organisms: proteins,

More information

3120-1 - Page 1. Name:

3120-1 - Page 1. Name: Name: 1) Which series is arranged in correct order according to decreasing size of structures? A) DNA, nucleus, chromosome, nucleotide, nitrogenous base B) chromosome, nucleus, nitrogenous base, nucleotide,

More information

Chapter 5: The Structure and Function of Large Biological Molecules

Chapter 5: The Structure and Function of Large Biological Molecules Name Period Concept 5.1 Macromolecules are polymers, built from monomers 1. The large molecules of all living things fall into just four main classes. Name them. 2. Circle the three classes that are called

More information

1. The diagram below represents a biological process

1. The diagram below represents a biological process 1. The diagram below represents a biological process 5. The chart below indicates the elements contained in four different molecules and the number of atoms of each element in those molecules. Which set

More information

BIOMOLECULES. reflect

BIOMOLECULES. reflect reflect A child s building blocks are relatively simple structures. When they come together, however, they can form magnifi cent structures. The elaborate city scene to the right is made of small, simple

More information

Name Date Period. 2. When a molecule of double-stranded DNA undergoes replication, it results in

Name Date Period. 2. When a molecule of double-stranded DNA undergoes replication, it results in DNA, RNA, Protein Synthesis Keystone 1. During the process shown above, the two strands of one DNA molecule are unwound. Then, DNA polymerases add complementary nucleotides to each strand which results

More information

The Structure and Function of Macromolecules: Carbohydrates, Lipids & Phospholipids

The Structure and Function of Macromolecules: Carbohydrates, Lipids & Phospholipids The Structure and Function of Macromolecules: Carbohydrates, Lipids & Phospholipids The FOUR Classes of Large Biomolecules All living things are made up of four classes of large biological molecules: Carbohydrates

More information

I. Chapter 5 Summary. II. Nucleotides & Nucleic Acids. III. Lipids

I. Chapter 5 Summary. II. Nucleotides & Nucleic Acids. III. Lipids I. Chapter 5 Summary A. Simple Sugars (CH 2 O) n : 1. One C contains a carbonyl (C=O) rest contain - 2. Classification by functional group: aldoses & ketoses 3. Classification by number of C's: trioses,

More information

Recognizing Organic Molecules: Carbohydrates, Lipids and Proteins

Recognizing Organic Molecules: Carbohydrates, Lipids and Proteins Recognizing Organic Molecules: Carbohydrates, Lipids and Proteins Oct 15 8:05 PM What is an Organic Molecule? An Organic Molecule is a molecule that contains carbon and hydrogen and oxygen Carbon is found

More information

Chapter 2 Chemical Principles

Chapter 2 Chemical Principles Chapter 2 Chemical Principles I. Chemistry. [Students should read this section on their own]. a. Chemistry is the study of the interactions between atoms and molecules. b. The atom is the smallest unit

More information

DNA is found in all organisms from the smallest bacteria to humans. DNA has the same composition and structure in all organisms!

DNA is found in all organisms from the smallest bacteria to humans. DNA has the same composition and structure in all organisms! Biological Sciences Initiative HHMI DNA omponents and Structure Introduction Nucleic acids are molecules that are essential to, and characteristic of, life on Earth. There are two basic types of nucleic

More information

Macromolecules 1 Carbohydrates, Lipids & Nucleic Acids

Macromolecules 1 Carbohydrates, Lipids & Nucleic Acids VEA Bringing Learning to Life Program Support Notes Macromolecules 1 Carbohydrates, Lipids & Nucleic Acids Grades 10 - College 25mins Teacher Notes by Sue Wright, B. Sc., Dip. Ed. Produced by VEA Pty Ltd

More information

Carbohydrates Lipids Proteins Nucleic Acids

Carbohydrates Lipids Proteins Nucleic Acids Carbohydrates Lipids Proteins Nucleic Acids Carbon The element of life! All living things contain the element carbon. Organic means it contains carbon The reason for this is because of carbon s ability

More information

Lab 3 Organic Molecules of Biological Importance

Lab 3 Organic Molecules of Biological Importance Name Biology 3 ID Number Lab 3 Organic Molecules of Biological Importance Section 1 - Organic Molecules Section 2 - Functional Groups Section 3 - From Building Blocks to Macromolecules Section 4 - Carbohydrates

More information

The molecules of life. The molecules that make up living things are really big They are called macromolecules

The molecules of life. The molecules that make up living things are really big They are called macromolecules Food Labels All living things use materials and energy Our food comes from living things The food labels we see show us what our food is made of The stuff we are studying today can be found on food labels

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

1.1.2. thebiotutor. AS Biology OCR. Unit F211: Cells, Exchange & Transport. Module 1.2 Cell Membranes. Notes & Questions.

1.1.2. thebiotutor. AS Biology OCR. Unit F211: Cells, Exchange & Transport. Module 1.2 Cell Membranes. Notes & Questions. thebiotutor AS Biology OCR Unit F211: Cells, Exchange & Transport Module 1.2 Cell Membranes Notes & Questions Andy Todd 1 Outline the roles of membranes within cells and at the surface of cells. The main

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

Anatomy and Physiology Placement Exam 2 Practice with Answers at End!

Anatomy and Physiology Placement Exam 2 Practice with Answers at End! Anatomy and Physiology Placement Exam 2 Practice with Answers at End! General Chemical Principles 1. bonds are characterized by the sharing of electrons between the participating atoms. a. hydrogen b.

More information

PRACTICE TEST QUESTIONS

PRACTICE TEST QUESTIONS PART A: MULTIPLE CHOICE QUESTIONS PRACTICE TEST QUESTIONS DNA & PROTEIN SYNTHESIS B 1. One of the functions of DNA is to A. secrete vacuoles. B. make copies of itself. C. join amino acids to each other.

More information

Enzymes. A. a lipid B. a protein C. a carbohydrate D. a mineral

Enzymes. A. a lipid B. a protein C. a carbohydrate D. a mineral Enzymes 1. All cells in multicellular organisms contain thousands of different kinds of enzymes that are specialized to catalyze different chemical reactions. Given this information, which of the following

More information

Name Date Period. Keystone Review Enzymes

Name Date Period. Keystone Review Enzymes Name Date Period Keystone Review Enzymes 1. In order for cells to function properly, the enzymes that they contain must also function properly. What can be inferred using the above information? A. Cells

More information

PRESTWICK ACADEMY NATIONAL 5 BIOLOGY CELL BIOLOGY SUMMARY

PRESTWICK ACADEMY NATIONAL 5 BIOLOGY CELL BIOLOGY SUMMARY Name PRESTWICK ACADEMY NATIONAL 5 BIOLOGY CELL BIOLOGY SUMMARY Cell Structure Identify animal, plant, fungal and bacterial cell ultrastructure and know the structures functions. Plant cell Animal cell

More information

THE HISTORY OF CELL BIOLOGY

THE HISTORY OF CELL BIOLOGY SECTION 4-1 REVIEW THE HISTORY OF CELL BIOLOGY Define the following terms. 1. cell 2. cell theory Write the correct letter in the blank. 1. One early piece of evidence supporting the cell theory was the

More information

ATOMS AND BONDS. Bonds

ATOMS AND BONDS. Bonds ATOMS AND BONDS Atoms of elements are the simplest units of organization in the natural world. Atoms consist of protons (positive charge), neutrons (neutral charge) and electrons (negative charge). The

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

WATER CHAPTER 3 - BIOCHEMISTRY "THE CHEMISTRY OF LIFE" POLARITY HYDROGEN BONDING

WATER CHAPTER 3 - BIOCHEMISTRY THE CHEMISTRY OF LIFE POLARITY HYDROGEN BONDING CHAPTER 3 - BIOCHEMISTRY "THE CHEMISTRY OF LIFE" WATER Compare the body of the jellyfish with our own bodies. The jellyfish will die if it is removed from its water environment, yet we can live in the

More information

Nucleotides and Nucleic Acids

Nucleotides and Nucleic Acids Nucleotides and Nucleic Acids Brief History 1 1869 - Miescher Isolated nuclein from soiled bandages 1902 - Garrod Studied rare genetic disorder: Alkaptonuria; concluded that specific gene is associated

More information

Proteins. Proteins. Amino Acids. Most diverse and most important molecule in. Functions: Functions (cont d)

Proteins. Proteins. Amino Acids. Most diverse and most important molecule in. Functions: Functions (cont d) Proteins Proteins Most diverse and most important molecule in living i organisms Functions: 1. Structural (keratin in hair, collagen in ligaments) 2. Storage (casein in mother s milk) 3. Transport (HAEMOGLOBIN!)

More information

Worksheet 13.1. Chapter 13: Human biochemistry glossary

Worksheet 13.1. Chapter 13: Human biochemistry glossary Worksheet 13.1 Chapter 13: Human biochemistry glossary α-helix Refers to a secondary structure of a protein where the chain is twisted to form a regular helix, held by hydrogen bonds between peptide bonds

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

DNA, RNA, Protein synthesis, and Mutations. Chapters 12-13.3

DNA, RNA, Protein synthesis, and Mutations. Chapters 12-13.3 DNA, RNA, Protein synthesis, and Mutations Chapters 12-13.3 1A)Identify the components of DNA and explain its role in heredity. DNA s Role in heredity: Contains the genetic information of a cell that can

More information

Preliminary MFM Quiz

Preliminary MFM Quiz Preliminary MFM Quiz 1. The major carrier of chemical energy in all cells is: A) adenosine monophosphate B) adenosine diphosphate C) adenosine trisphosphate D) guanosine trisphosphate E) carbamoyl phosphate

More information

Investigating cells. Cells are the basic units of living things (this means that all living things are made up of one or more cells).

Investigating cells. Cells are the basic units of living things (this means that all living things are made up of one or more cells). SG Biology Summary notes Investigating cells Sub-topic a: Investigating living cells Cells are the basic units of living things (this means that all living things are made up of one or more cells). Cells

More information

Genetic information (DNA) determines structure of proteins DNA RNA proteins cell structure 3.11 3.15 enzymes control cell chemistry ( metabolism )

Genetic information (DNA) determines structure of proteins DNA RNA proteins cell structure 3.11 3.15 enzymes control cell chemistry ( metabolism ) Biology 1406 Exam 3 Notes Structure of DNA Ch. 10 Genetic information (DNA) determines structure of proteins DNA RNA proteins cell structure 3.11 3.15 enzymes control cell chemistry ( metabolism ) Proteins

More information

Organic Molecules of Life - Exercise 2

Organic Molecules of Life - Exercise 2 Organic Molecules of Life - Exercise 2 Objectives -Know the difference between a reducing sugar and a non-reducing sugar. -Distinguish Monosaccharides from Disaccharides and Polysaccharides -Understand

More information

Given these characteristics of life, which of the following objects is considered a living organism? W. X. Y. Z.

Given these characteristics of life, which of the following objects is considered a living organism? W. X. Y. Z. Cell Structure and Organization 1. All living things must possess certain characteristics. They are all composed of one or more cells. They can grow, reproduce, and pass their genes on to their offspring.

More information

Cellular Energy: ATP & Enzymes. What is it? Where do organism s get it? How do they use it?

Cellular Energy: ATP & Enzymes. What is it? Where do organism s get it? How do they use it? Cellular Energy: ATP & Enzymes What is it? Where do organism s get it? How do they use it? Where does Energy come from? Ultimately, from the sun. It is transferred between organisms in the earth s lithosphere,

More information

MCAS Biology. Review Packet

MCAS Biology. Review Packet MCAS Biology Review Packet 1 Name Class Date 1. Define organic. THE CHEMISTRY OF LIFE 2. All living things are made up of 6 essential elements: SPONCH. Name the six elements of life. S N P C O H 3. Elements

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

Chapter 5: The Structure and Function of Large Biological Molecules

Chapter 5: The Structure and Function of Large Biological Molecules Name Period Chapter 5: The Structure and Function of Large Biological Molecules Concept 5.1 Macromolecules are polymers, built from monomers 1. The large molecules of all living things fall into just four

More information

Molecular Genetics. RNA, Transcription, & Protein Synthesis

Molecular Genetics. RNA, Transcription, & Protein Synthesis Molecular Genetics RNA, Transcription, & Protein Synthesis Section 1 RNA AND TRANSCRIPTION Objectives Describe the primary functions of RNA Identify how RNA differs from DNA Describe the structure and

More information

2. The number of different kinds of nucleotides present in any DNA molecule is A) four B) six C) two D) three

2. The number of different kinds of nucleotides present in any DNA molecule is A) four B) six C) two D) three Chem 121 Chapter 22. Nucleic Acids 1. Any given nucleotide in a nucleic acid contains A) two bases and a sugar. B) one sugar, two bases and one phosphate. C) two sugars and one phosphate. D) one sugar,

More information

NO CALCULATORS OR CELL PHONES ALLOWED

NO CALCULATORS OR CELL PHONES ALLOWED Biol 205 Exam 1 TEST FORM A Spring 2008 NAME Fill out both sides of the Scantron Sheet. On Side 2 be sure to indicate that you have TEST FORM A The answers to Part I should be placed on the SCANTRON SHEET.

More information

Replication Study Guide

Replication Study Guide Replication Study Guide This study guide is a written version of the material you have seen presented in the replication unit. Self-reproduction is a function of life that human-engineered systems have

More information

Molecular Cell Biology

Molecular Cell Biology Harvey Lodish Arnold Berk Paul Matsudaira Chris A. Kaiser Monty Krieger Matthew P. Scott Lawrence Zipursky James Darnell Molecular Cell Biology Fifth Edition Chapter 2: Chemical Foundations Copyright 2004

More information

Which of the following can be determined based on this model? The atmosphere is the only reservoir on Earth that can store carbon in any form. A.

Which of the following can be determined based on this model? The atmosphere is the only reservoir on Earth that can store carbon in any form. A. Earth s Cycles 1. Models are often used to explain scientific knowledge or experimental results. A model of the carbon cycle is shown below. Which of the following can be determined based on this model?

More information

Student name ID # 2. (4 pts) What is the terminal electron acceptor in respiration? In photosynthesis? O2, NADP+

Student name ID # 2. (4 pts) What is the terminal electron acceptor in respiration? In photosynthesis? O2, NADP+ 1. Membrane transport. A. (4 pts) What ion couples primary and secondary active transport in animal cells? What ion serves the same function in plant cells? Na+, H+ 2. (4 pts) What is the terminal electron

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

Unit 2: Cells, Membranes and Signaling CELL MEMBRANE. Chapter 5 Hillis Textbook

Unit 2: Cells, Membranes and Signaling CELL MEMBRANE. Chapter 5 Hillis Textbook Unit 2: Cells, Membranes and Signaling CELL MEMBRANE Chapter 5 Hillis Textbook HOW DOES THE LAB RELATE TO THE NEXT CHAPTER? SURFACE AREA: the entire outer covering of a cell that enables materials pass.

More information

DNA Replication & Protein Synthesis. This isn t a baaaaaaaddd chapter!!!

DNA Replication & Protein Synthesis. This isn t a baaaaaaaddd chapter!!! DNA Replication & Protein Synthesis This isn t a baaaaaaaddd chapter!!! The Discovery of DNA s Structure Watson and Crick s discovery of DNA s structure was based on almost fifty years of research by other

More information

Energy Production In A Cell (Chapter 25 Metabolism)

Energy Production In A Cell (Chapter 25 Metabolism) Energy Production In A Cell (Chapter 25 Metabolism) Large food molecules contain a lot of potential energy in the form of chemical bonds but it requires a lot of work to liberate the energy. Cells need

More information

Cells & Cell Organelles

Cells & Cell Organelles Cells & Cell Organelles The Building Blocks of Life H Biology Types of cells bacteria cells Prokaryote - no organelles Eukaryotes - organelles animal cells plant cells Cell size comparison Animal cell

More information

2007 7.013 Problem Set 1 KEY

2007 7.013 Problem Set 1 KEY 2007 7.013 Problem Set 1 KEY Due before 5 PM on FRIDAY, February 16, 2007. Turn answers in to the box outside of 68-120. PLEASE WRITE YOUR ANSWERS ON THIS PRINTOUT. 1. Where in a eukaryotic cell do you

More information

Chapter 11: Molecular Structure of DNA and RNA

Chapter 11: Molecular Structure of DNA and RNA Chapter 11: Molecular Structure of DNA and RNA Student Learning Objectives Upon completion of this chapter you should be able to: 1. Understand the major experiments that led to the discovery of DNA as

More information

Chapter 8: An Introduction to Metabolism

Chapter 8: An Introduction to Metabolism Chapter 8: An Introduction to Metabolism Name Period Concept 8.1 An organism s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. The totality of an organism

More information

Unit I: Introduction To Scientific Processes

Unit I: Introduction To Scientific Processes Unit I: Introduction To Scientific Processes This unit is an introduction to the scientific process. This unit consists of a laboratory exercise where students go through the QPOE2 process step by step

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

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

B2 1 Cells, Tissues and Organs

B2 1 Cells, Tissues and Organs B2 Cells, Tissues and Organs 5 minutes 5 marks Page of 7 Q. The diagram shows a bacterium. On the drawing, name the structures labelled A, B, C and D. (Total 4 marks) Q2. (a) The diagrams show cells containing

More information

Name Class Date. Figure 13 1. 2. Which nucleotide in Figure 13 1 indicates the nucleic acid above is RNA? a. uracil c. cytosine b. guanine d.

Name Class Date. Figure 13 1. 2. Which nucleotide in Figure 13 1 indicates the nucleic acid above is RNA? a. uracil c. cytosine b. guanine d. 13 Multiple Choice RNA and Protein Synthesis Chapter Test A Write the letter that best answers the question or completes the statement on the line provided. 1. Which of the following are found in both

More information

Macromolecules in my food!!

Macromolecules in my food!! Macromolecules in my food!! Name Notes/Background Information Food is fuel: All living things need to obtain fuel from something. Whether it is self- made through the process of photosynthesis, or by ingesting

More information

Introduction to the Cell: Plant and Animal Cells

Introduction to the Cell: Plant and Animal Cells Introduction to the Cell: Plant and Animal Cells Tissues, Organs, and Systems of Living Things Cells, Cell Division, and Animal Systems and Plant Systems Cell Specialization Human Systems All organisms

More information

http://faculty.sau.edu.sa/h.alshehri

http://faculty.sau.edu.sa/h.alshehri http://faculty.sau.edu.sa/h.alshehri Definition: Proteins are macromolecules with a backbone formed by polymerization of amino acids. Proteins carry out a number of functions in living organisms: - They

More information

Cells, tissues and organs

Cells, tissues and organs Chapter 8: Cells, tissues and organs Cells: building blocks of life Living things are made of cells. Many of the chemical reactions that keep organisms alive (metabolic functions) take place in cells.

More information

1. A covalent bond between two atoms represents what kind of energy? a. Kinetic energy b. Potential energy c. Mechanical energy d.

1. A covalent bond between two atoms represents what kind of energy? a. Kinetic energy b. Potential energy c. Mechanical energy d. 1. A covalent bond between two atoms represents what kind of energy? a. Kinetic energy b. Potential energy c. Mechanical energy d. Solar energy A. Answer a is incorrect. Kinetic energy is the energy of

More information

Catalysis by Enzymes. Enzyme A protein that acts as a catalyst for a biochemical reaction.

Catalysis by Enzymes. Enzyme A protein that acts as a catalyst for a biochemical reaction. Catalysis by Enzymes Enzyme A protein that acts as a catalyst for a biochemical reaction. Enzymatic Reaction Specificity Enzyme Cofactors Many enzymes are conjugated proteins that require nonprotein portions

More information

Lecture 26: Overview of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) structure

Lecture 26: Overview of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) structure Lecture 26: Overview of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) structure Nucleic acids play an important role in the storage and expression of genetic information. They are divided into

More information

How To Understand The Human Body

How To Understand The Human Body Introduction to Biology and Chemistry Outline I. Introduction to biology A. Definition of biology - Biology is the study of life. B. Characteristics of Life 1. Form and size are characteristic. e.g. A

More information

Structure and Function of DNA

Structure and Function of DNA Structure and Function of DNA DNA and RNA Structure DNA and RNA are nucleic acids. They consist of chemical units called nucleotides. The nucleotides are joined by a sugar-phosphate backbone. The four

More information

Membrane Structure and Function

Membrane Structure and Function Membrane Structure and Function Part A Multiple Choice 1. The fluid mosaic model describes membranes as having A. a set of protein channels separated by phospholipids. B. a bilayer of phospholipids in

More information

MULTIPLE CHOICE QUESTIONS

MULTIPLE CHOICE QUESTIONS MULTIPLE CHOICE QUESTIONS 1. Most components of energy conversion systems evolved very early; thus, the most fundamental aspects of energy metabolism tend to be: A. quite different among a diverse group

More information

What happens to the food we eat? It gets broken down!

What happens to the food we eat? It gets broken down! Enzymes Essential Questions: What is an enzyme? How do enzymes work? What are the properties of enzymes? How do they maintain homeostasis for the body? What happens to the food we eat? It gets broken down!

More information

The Steps. 1. Transcription. 2. Transferal. 3. Translation

The Steps. 1. Transcription. 2. Transferal. 3. Translation Protein Synthesis Protein synthesis is simply the "making of proteins." Although the term itself is easy to understand, the multiple steps that a cell in a plant or animal must go through are not. In order

More information

STRUCTURES OF NUCLEIC ACIDS

STRUCTURES OF NUCLEIC ACIDS CHAPTER 2 STRUCTURES OF NUCLEIC ACIDS What is the chemical structure of a deoxyribonucleic acid (DNA) molecule? DNA is a polymer of deoxyribonucleotides. All nucleic acids consist of nucleotides as building

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

1. When applying the process of science, which of these is tested? a. an observation b. a result c. a hypothesis d. a question e.

1. When applying the process of science, which of these is tested? a. an observation b. a result c. a hypothesis d. a question e. BCOR 11 Exam 1, 2004 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1. When applying the process of science, which of these is tested? a. an observation

More information