Campbell Biology, 13e (Urry)
Chapter 41 Animal Nutrition
41.1 Multiple Choice Questions
1) The following table shows the contents of a multivitamin supplement and its percentage of
recommended daily values (% DV).
Dietary Supplement % DV
Vitamin A 70
Vitamin C 100
Vitamin D 100
Vitamin E 150
Vitamin K 13
Vitamin B1 100
Vitamin B2 100
Folic acid 100
Vitamin B12 41.7
Calcium 20
Phosphorus 5
Iodine 100
Magnesium 25
Zinc 100
Copper 100
Chromium 125
Molybdenum 100
Iron 0
The most likely reason that some of the vitamins and minerals in this supplement are found at
less than 100% is thatf i l . l i n t h e b l a n k
A) it would be chemically impossible to add more
B) these vitamins and minerals are too large in size to reach 100%
C) it is too easy to overdose on minerals such as phosphorus and calcium
D) it is dangerous to ingest more than the recommended daily value of fat-soluble vitamins
such as A and K
Answer: D
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
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, Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G3, V&C LO: VC-QR
2) Iodine deficiency in mammals will most likely result in f i l l i n t h e b l a n k .
A) decreased production of thyroid hormones
B) decreased enzyme function
C) weak bones
D) decreased muscle function
Answer: A
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
3) Lysine is one of the eight essential amino acids required by most animals. An animal that
lacked lysine in its diet
f i l .
l i n t h e b l a n k
A) would make lysine from other amino acids
B) could not make many necessary proteins
C) could not synthesize phospholipids
D) could not synthesize mRNA
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
4) Which of the following is a difference between vitamins and minerals?
A) Vitamins are involved in regulating enzyme activity, but minerals are not.
B) Vitamins are organic molecules, but minerals are inorganic molecules.
C) Vitamins are made by the animal, but minerals are obtained by an animal through dietary
sources.
D) Vitamins are only obtained by digesting plants, whereas minerals are only obtained by
digesting meat.
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
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,5) For humans there are nine essential amino acids. What is true of the nonessential amino acids?
A) They are not used by the human body to synthesize proteins.
B) They must be obtained in the diet.
C) They can be synthesized by the human body.
D) Lack of these amino acids does not significantly affect human health.
Answer: C
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
6) Each of three groups of cyclists had a different diet: high-carbohydrate; a mix of
carbohydrates, fat, and protein; or high in protein and fat. The blood glucose levels of the
riders over a six-hour period after consuming each diet is shown in the accompanying graph.
Which statement best summarizes the data in the graph?
A) Endurance is entirely related to diet.
B) Maintaining elevated blood sugar improves endurance.
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, C) An early 50 percent drop in blood glucose is associated with improved endurance.
D) A high protein-fat diet increases cycling speed.
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 5-6: Evaluating/Creating
Learning Outcome: 41.1, Global LO: G3, V&C LO: VC-QR
7) Megaloblastic anemia results from a vitamin deficiency and causes abnormalities in red blood
cell production and neurological issues. Megaloblastic anemia may be caused by a deficiency
in which of the following vitamins?
A) vitamin A
B) vitamin B12
C) vitamin C
D) vitamin K
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G7, V&C LO: VC-EM
8) The most common type of malnutrition in humans is caused by lack of f i l l i n t h e b l a n k .
A) vitamin C
B) essential amino acids
C) vitamin D
D) iodine
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G7, V&C LO: VC-EM
9) Ticks are parasites that obtain nutrients by ingesting blood from a host animal. Ticks would be
classified asf i l .
l i n t h e b l a n k
A) filter feeders
B) substrate feeders
C) fluid feeders
D) bulk feeders
4
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Chapter 41 Animal Nutrition
41.1 Multiple Choice Questions
1) The following table shows the contents of a multivitamin supplement and its percentage of
recommended daily values (% DV).
Dietary Supplement % DV
Vitamin A 70
Vitamin C 100
Vitamin D 100
Vitamin E 150
Vitamin K 13
Vitamin B1 100
Vitamin B2 100
Folic acid 100
Vitamin B12 41.7
Calcium 20
Phosphorus 5
Iodine 100
Magnesium 25
Zinc 100
Copper 100
Chromium 125
Molybdenum 100
Iron 0
The most likely reason that some of the vitamins and minerals in this supplement are found at
less than 100% is thatf i l . l i n t h e b l a n k
A) it would be chemically impossible to add more
B) these vitamins and minerals are too large in size to reach 100%
C) it is too easy to overdose on minerals such as phosphorus and calcium
D) it is dangerous to ingest more than the recommended daily value of fat-soluble vitamins
such as A and K
Answer: D
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
1
Copyright © 2027
, Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G3, V&C LO: VC-QR
2) Iodine deficiency in mammals will most likely result in f i l l i n t h e b l a n k .
A) decreased production of thyroid hormones
B) decreased enzyme function
C) weak bones
D) decreased muscle function
Answer: A
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
3) Lysine is one of the eight essential amino acids required by most animals. An animal that
lacked lysine in its diet
f i l .
l i n t h e b l a n k
A) would make lysine from other amino acids
B) could not make many necessary proteins
C) could not synthesize phospholipids
D) could not synthesize mRNA
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
4) Which of the following is a difference between vitamins and minerals?
A) Vitamins are involved in regulating enzyme activity, but minerals are not.
B) Vitamins are organic molecules, but minerals are inorganic molecules.
C) Vitamins are made by the animal, but minerals are obtained by an animal through dietary
sources.
D) Vitamins are only obtained by digesting plants, whereas minerals are only obtained by
digesting meat.
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
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,5) For humans there are nine essential amino acids. What is true of the nonessential amino acids?
A) They are not used by the human body to synthesize proteins.
B) They must be obtained in the diet.
C) They can be synthesized by the human body.
D) Lack of these amino acids does not significantly affect human health.
Answer: C
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G1, V&C LO: VC-SF
6) Each of three groups of cyclists had a different diet: high-carbohydrate; a mix of
carbohydrates, fat, and protein; or high in protein and fat. The blood glucose levels of the
riders over a six-hour period after consuming each diet is shown in the accompanying graph.
Which statement best summarizes the data in the graph?
A) Endurance is entirely related to diet.
B) Maintaining elevated blood sugar improves endurance.
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, C) An early 50 percent drop in blood glucose is associated with improved endurance.
D) A high protein-fat diet increases cycling speed.
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 5-6: Evaluating/Creating
Learning Outcome: 41.1, Global LO: G3, V&C LO: VC-QR
7) Megaloblastic anemia results from a vitamin deficiency and causes abnormalities in red blood
cell production and neurological issues. Megaloblastic anemia may be caused by a deficiency
in which of the following vitamins?
A) vitamin A
B) vitamin B12
C) vitamin C
D) vitamin K
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 41.1, Global LO: G7, V&C LO: VC-EM
8) The most common type of malnutrition in humans is caused by lack of f i l l i n t h e b l a n k .
A) vitamin C
B) essential amino acids
C) vitamin D
D) iodine
Answer: B
Topic: An animal’s diet must supply chemical energy, organic building blocks, and essential
nutrients
Bloom’s Taxonomy: Levels 1-2: Remembering/Understanding
Learning Outcome: 41.1, Global LO: G7, V&C LO: VC-EM
9) Ticks are parasites that obtain nutrients by ingesting blood from a host animal. Ticks would be
classified asf i l .
l i n t h e b l a n k
A) filter feeders
B) substrate feeders
C) fluid feeders
D) bulk feeders
4
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