Campbell biology test questions
(Answered) 2023, Complete Solution
Chapter 5 : The Structure and Function of Macromolecules
1. Which term includes all others in the list?
monosaccharide
disaccharide
starch
carbohydrate
polysaccharide
2. The molecular formula for glucose is C6H12O6. What would be the molecular
formula for a polymer made by linking ten glucose molecules together by
dehydration reactions?
C60H120O60
C6H12O6
C60H102O51
C60H100O50
C60H111O51
3. The enzyme amylase can break glycosidic linkages between glucose
monomers only if the monomers are the a form. Which of the following could
amylase break down?
glycogen, starch, and amylopectin
glycogen and cellulose
cellulose and chitin
starch and chitin
starch, amylopectin, and cellulose
4. Choose the pair of terms that correctly completes this sentence: Nucleotides
are to as are to proteins.
nucleic acids; amino acids
amino acids; polypeptides
1
, glycosidic linkages; polypeptide linkages
genes; enzymes
polymers; polypeptides
2
, 5. Which of the following statements concerning unsaturated fats is true?
They are more common in animals than in plants.
They have double bonds in the carbon chains of their fatty acids.
They generally solidify at room temperature.
They contain more hydrogen than saturated fats having the same number of
carbon atoms.
They have fewer fatty acid molecules per fat molecule.
6. The structural level of a protein least affected by a disruption in hydrogen
bonding is the
primary level.
secondary level.
tertiary level.
quaternary level.
All structural levels are equally affected.
7. Which of the following pairs of base sequences could form a short stretch of a
normal double helix of DNA?
5'-purine-pyrimidine-purine-pyrimidine-3' with 3'-purine-pyrimidine-
purine- pyrimidine-5'
5'-A-G-C-T-3' with 5'-T-C-G-A-3'
5'-G-C-G-C-3' with 5'-T-A-T-A-3'
5'-A-T-G-C-3' with 5'-G-C-A-T-3'
all of the above
8. Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds
that join nucleotides together. What would happen to DNA molecules treated
with these enzymes?
The two strands of the double helix would separate.
The phosphodiester bonds between deoxyribose sugars would be broken.
The purines would be separated from the deoxyribose sugars.
The pyrimidines would be separated from the deoxyribose sugars.
All bases would be separated from the deoxyribose sugars.
3
, 9. Which of the following is not a protein?
hemoglobin
cholesterol
an antibody
an enzyme
insulin
10. Which of the following statements about the 5' end of a polynucleotide strand
is correct?
The 5' end has a hydroxyl group.
The 5' end has a phosphate group.
The 5' end is identical to the 3' end.
The 5' end is antiparallel to the 3' end.
The 5' end is the fifth position on one of the nitrogenous bases
4
(Answered) 2023, Complete Solution
Chapter 5 : The Structure and Function of Macromolecules
1. Which term includes all others in the list?
monosaccharide
disaccharide
starch
carbohydrate
polysaccharide
2. The molecular formula for glucose is C6H12O6. What would be the molecular
formula for a polymer made by linking ten glucose molecules together by
dehydration reactions?
C60H120O60
C6H12O6
C60H102O51
C60H100O50
C60H111O51
3. The enzyme amylase can break glycosidic linkages between glucose
monomers only if the monomers are the a form. Which of the following could
amylase break down?
glycogen, starch, and amylopectin
glycogen and cellulose
cellulose and chitin
starch and chitin
starch, amylopectin, and cellulose
4. Choose the pair of terms that correctly completes this sentence: Nucleotides
are to as are to proteins.
nucleic acids; amino acids
amino acids; polypeptides
1
, glycosidic linkages; polypeptide linkages
genes; enzymes
polymers; polypeptides
2
, 5. Which of the following statements concerning unsaturated fats is true?
They are more common in animals than in plants.
They have double bonds in the carbon chains of their fatty acids.
They generally solidify at room temperature.
They contain more hydrogen than saturated fats having the same number of
carbon atoms.
They have fewer fatty acid molecules per fat molecule.
6. The structural level of a protein least affected by a disruption in hydrogen
bonding is the
primary level.
secondary level.
tertiary level.
quaternary level.
All structural levels are equally affected.
7. Which of the following pairs of base sequences could form a short stretch of a
normal double helix of DNA?
5'-purine-pyrimidine-purine-pyrimidine-3' with 3'-purine-pyrimidine-
purine- pyrimidine-5'
5'-A-G-C-T-3' with 5'-T-C-G-A-3'
5'-G-C-G-C-3' with 5'-T-A-T-A-3'
5'-A-T-G-C-3' with 5'-G-C-A-T-3'
all of the above
8. Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds
that join nucleotides together. What would happen to DNA molecules treated
with these enzymes?
The two strands of the double helix would separate.
The phosphodiester bonds between deoxyribose sugars would be broken.
The purines would be separated from the deoxyribose sugars.
The pyrimidines would be separated from the deoxyribose sugars.
All bases would be separated from the deoxyribose sugars.
3
, 9. Which of the following is not a protein?
hemoglobin
cholesterol
an antibody
an enzyme
insulin
10. Which of the following statements about the 5' end of a polynucleotide strand
is correct?
The 5' end has a hydroxyl group.
The 5' end has a phosphate group.
The 5' end is identical to the 3' end.
The 5' end is antiparallel to the 3' end.
The 5' end is the fifth position on one of the nitrogenous bases
4
