Question 1

Starches and sugars are examples of ________.

Accepted Answer

A)   carbohydrates
B)   lipids
C)   proteins
D)   vitamins
E)   mineralsF) D) and E)
G) C) and D)

Question 2

The body's main energy storage molecules are ________.

Accepted Answer

A)   sugars
B)   proteins
C)   lipids
D)   vitamins
E)   carbohydratesF) A) and B)
G) A) and C)

Question 3

Match the mineral with its function.
-Magnesium

Accepted Answer

A)  Functions in carbon dioxide metabolism and transport, also needed for protein metabolism
B)  Component of hemoglobin
C)  A constituent of coenzymes; needed for bone formation and proper function of nerve and muscle
D)  Needed for the production of thyroxine
E)  Component of nucleic acids and ATP; used in bone formationF) B) and E)
G) A) and B)

Question 4

The yield of ATP in aerobic respiration is usually lower than the theoretical 36 molecules due to all of the following, except

Accepted Answer

A)   production of lactate.
B)   cost to shuttle NADH into the mitochondrion.
C)   getting ATP out of the mitochondrion.
D)   different yields per NADH molecule.E) B) and C)
F) All of the above

Question 5

The inner membrane of a mitochondrion contains the protein ________, which harnesses the energy created by H+ flow to produce ATP by a process called ________.

Accepted Answer

A)   enzyme complex; reduction
B)   ATP synthase; oxidation
C)   enzyme complex; proton pumping
D)   ATP synthase; the chemiosmotic mechanism
E)   cytochrome c; reductionF) A) and B)
G) None of the above

Question 6

An essential amino acid

Accepted Answer

A)   can be formed from lipids in the body.
B)   can be synthesized by the body if there is enough nitrogen.
C)   must be made from glucose.
D)   must be supplied in the diet.
E)   cannot be converted to nonessential amino acids.F) A) and C)
G) None of the above

Question 7

Carbohydrates function as structural components in all of the following except ________.

Accepted Answer

A)   glycolipids
B)   glycoproteins
C)   nucleic acids
D)   amino acids
E)   ATPF) A) and D)
G) B) and E)

Question 8

The body synthesizes nonessential amino acids in a process called oxidative deamination.

Accepted Answer

A) True 
 B)False

Question 9

Match the vitamin with its associated disease.
-Vitamin B12

Accepted Answer

A)  Scurvy
B)  Night blindness
C)  Beriberi
D)  Pellagra
E)  Pernicious anemiaF) C) and D)
G) A) and D)

Question 10

Which of the following statements concerning metabolic reactions is true?

Accepted Answer

A)   Catabolic reactions are synthesis reactions.
B)   Anabolic reactions are involved in the production of proteins from amino acids.
C)   The energy derived from anabolism is used to drive catabolism.
D)   Anabolic reactions release energy.
E)   Catabolic reactions consume energy.F) A) and B)
G) B) and E)

Question 11

The transformation of acetyl-CoA to free fatty acids is a process called ________.

Accepted Answer

A)   lipogenesis
B)   ketogenesis
C)   cellular respiration
D)   glucogenesis
E)   fermentationF) A) and B)
G) C) and E)

Question 12

Which of the following minerals is part of the hemoglobin molecule?

Accepted Answer

A)   Calcium
B)   Iodine
C)   Iron
D)   Zinc
E)   FluorineF) B) and E)
G) B) and C)

Question 13

Proteins regulate the acid-base balance of the blood by ________.

Accepted Answer

A)   acting as buffers
B)   releasing nitrogen
C)   transporting iron
D)   binding Na+
E)   removing CO2 from the bloodF) C) and D)
G) B) and C)

Question 14

The energy currency of the cell is a molecule called ________.

Accepted Answer

A)   glucose
B)   pyruvate
C)   fat
D)   ADP
E)   ATPF) A) and E)
G) B) and E)

Question 15

Which of the following is least likely to occur late in the postabsorptive state?

Accepted Answer

A)   Hydrolysis of triglycerides
B)   Use of acetyl-CoA and ketones for energy
C)   Formation of glycogen
D)   Use of proteins as an energy source
E)   Reduced removal of glucose from the bloodF) C) and D)
G) A) and B)

Question 16

Match the mineral with its function.
-Iron

Accepted Answer

A)  Functions in carbon dioxide metabolism and transport, also needed for protein metabolism
B)  Component of hemoglobin
C)  A constituent of coenzymes; needed for bone formation and proper function of nerve and muscle
D)  Needed for the production of thyroxine
E)  Component of nucleic acids and ATP; used in bone formationF) A) and E)
G) A) and C)

Question 17

In the process called ________, glucose is broken down to two pyruvate molecules.

Accepted Answer

The answer of In the process called ________, glucose is...

Question 18

Polyunsaturated vegetable oils can be changed from liquids to solids by

Accepted Answer

A)   adding more unsaturated fatty acids to the molecules.
B)   removing the glycerol portion of the molecules.
C)   decreasing the number of double covalent bonds in their fatty acids.
D)   removing hydrogens from the molecules.E) C) and D)
F) A) and B)

Question 19

Use the following key to choose the best answer.
-Actin and myosin

Accepted Answer

A)  Carbohydrates
B)  Lipids
C)  Proteins
D)  Nucleic acidsE) B) and C)
F) A) and B)

Question 20

Which of the following is an example of an incomplete protein food?

Accepted Answer

A)   Eggs
B)   Meat
C)   Milk
D)   Leafy green vegetables
E)   CheeseF) A) and C)
G) All of the above

Exam 25: Nutrition, Metabolism, and Temperature Regulation

The body synthesizes nonessential amino acids in a process called oxidative deamination.

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Starches and sugars are examples of ________.

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Use the following key to choose the best answer. -Actin and myosin

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The inner membrane of a mitochondrion contains the protein ________, which harnesses the energy created by H+ flow to produce ATP by a process called ________.

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Which of the following statements concerning metabolic reactions is true?

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Which of the following minerals is part of the hemoglobin molecule?

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Proteins regulate the acid-base balance of the blood by ________.

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The transformation of acetyl-CoA to free fatty acids is a process called ________.

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Match the mineral with its function. -Iron

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Which of the following is least likely to occur late in the postabsorptive state?

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Which of the following is an example of an incomplete protein food?

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Match the vitamin with its associated disease. -Vitamin B12

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The energy currency of the cell is a molecule called ________.

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In the process called ________, glucose is broken down to two pyruvate molecules.

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Polyunsaturated vegetable oils can be changed from liquids to solids by

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The body's main energy storage molecules are ________.

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Carbohydrates function as structural components in all of the following except ________.

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An essential amino acid

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Match the mineral with its function. -Magnesium

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The yield of ATP in aerobic respiration is usually lower than the theoretical 36 molecules due to all of the following, except

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The inner membrane of a mitochondrion contains the protein , which harnesses the energy created by H⁺ flow to produce ATP by a process called .

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Match the vitamin with its associated disease. -Vitamin B₁₂

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