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Chapter 3: Proteins, Carbohydrates, and Lipids
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Chapter 3: Proteins, Carbohydrates, and Lipids
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Test Bankto accompany
Life: The Science of Biology, Tenth Edition
Sadava • Hillis • Heller • Berenbaum
Chapter 3: Proteins, Carbohydrates, and Lipids
TEST FILE QUESTIONS
(By Amy Burnside)
Multiple Choice
1. Large biological molecules that contain carbon and are held together by covalent bonds
are categorized as
a. proteins.
b. polymers.
c. nucleic acids.
d. macromolecules.
e. monomers.
Answer: d
Textbook Reference: 3.0 Chapter Introduction
Bloom’s Category: 2. Understanding
2. In large polymeric macromolecules, atoms are held together by _______ bonds.
a. hydrogen
b. peptide
c. disulfide
d. covalent
e. ionic
Answer: d
Textbook Reference: 3.0 Chapter Introduction
Bloom’s Category: 1. Remembering
3. All of the following are macromolecules except for
a. RNA.
b. DNA.
c. vitamins D, E, and K.
d. protein.
e. salt.
Answer: e
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 2. Understanding
4. Which of the following is not a correct monomer/polymer pairing?
a. Monosaccharide/polysaccharide
© 2014 Sinauer Associates, Inc.
,b. Amino acid/protein
c. Cellulose/triglyceride
d. Nucleotide/nucleic acid
e. Monosaccharide/oligosaccharide
Answer: c
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?; 3.3 What
Are the Chemical Structures and Functions of Carbohydrates?; 3.4 What Are the
Chemical Structures and Functions of Lipids?
Bloom’s Category: 3. Applying
5. Amino and carboxyl functional groups tend to form bases and acids by gaining or
losing
a. a neutron.
b. a proton.
c. an electron.
d. Both a and b
e. Both b and c
Answer: b
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 4. Analyzing
6. Aldehydes and ketones are very similar in that they both contain
a. phosphorus atoms.
b. sulfur atoms.
c. a carbonyl group (C=O).
d. nitrogen atoms.
e. two “R” groups.
Answer: c
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 2. Understanding
7. Molecules containing a large number of hydroxyl groups are
a. basic.
b. structurally less stable than those with fewer hydroxyls.
c. complex macromolecules.
d. nonpolar.
e. soluble in water.
Answer: e
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 4. Analyzing
8. An essential functional group involved in cellular energy transfer is the _______ group.
a. phosphate
b. amino
c. sulfhydryl
d. hydroxyl
© 2014 Sinauer Associates, Inc.
,e. saccharide
Answer: a
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 2. Understanding
9. Which of the following statements regarding the functional groups of carbon-based
molecules is false?
a. They determine how the molecule interacts with other molecules in the environment.
b. They determine the shape of the molecule.
c. They determine the specific properties of the molecule.
d. They may have interactions with specific functional groups on the same molecule.
e. They repel each other.
Answer: e
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 5. Evaluating
10. In condensation reactions, the atoms that make up a water molecule are derived from
a. oxygen.
b. one of the reactants.
c. both reactants.
d. carbohydrates.
e. the enzyme.
Answer: c
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
Bloom’s Category: 2. Understanding
11. Polymerization reactions in which polysaccharides are synthesized from
monosaccharides
a. require the formation of phosphodiester bonds between the monosaccharides.
b. release phosphate.
c. are hydrolysis reactions.
d. depend upon van der Waals forces to hold the monosaccharides together.
e. result in the formation of water.
Answer: e
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?; 3.3 What
Are the Chemical Structures and Functions of Carbohydrates?
Bloom’s Category: 4. Analyzing
12. What do polysaccharides, polypeptides, and polynucleotides have in common?
a. They contain simple sugars.
b. They are broken down in hydrolysis reactions.
c. They are located in cell membranes.
d. They contain nitrogen.
e. They have molecular weights less than 30,000 daltons.
Answer: b
Textbook Reference: 3.1 What Kinds of Molecules Characterize Living Things?
© 2014 Sinauer Associates, Inc.
, Bloom’s Category: 2. Understanding
13. During the formation of a peptide linkage, a(n) _______ is formed.
a. molecule of water
b. disulfide bridge
c. hydrophobic bond
d. hydrophilic bond
e. ionic bond
Answer: a
Textbook Reference: 3.2 What Are the Chemical Structures and Functions of Proteins?
Bloom’s Category: 2. Understanding
14. Each amino acid has a unique _______ group.
a. amino
b. hydroxyl
c. carboxyl
d. “R”
e. phosphate
Answer: d
Textbook Reference: 3.2 What Are the Chemical Structures and Functions of Proteins?
Bloom’s Category: 2. Understanding
15. Which of the following statements about proteins is true?
a. They are insoluble in water.
b. Some are the structural units of glycogen.
c. Some possess glycosidic linkages between amino acids.
d. Some function as enzymes.
e. They are involved in information storage.
Answer: d
Textbook Reference: 3.2 What Are the Chemical Structures and Functions of Proteins?
Bloom’s Category: 2. Understanding
16. All of the following amino acids have an optical isomer except for
a. arginine.
b. cysteine.
c. alanine.
d. glycine.
e. methionine.
Answer: d
Textbook Reference: 3.2 What Are the Chemical Structures and Functions of Proteins?
Bloom’s Category: 1. Remembering
17. Leucine and valine have side chains that do not interact with water; therefore, they
a. are hydrophilic.
b. are nonpolar.
c. have sulfur atoms in their side chains.
© 2014 Sinauer Associates, Inc.
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