1. Chapter 6: Proteins: Crucial Components of All Body Tissues
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2. The portion of an amino acid that contains nitrogen is called the
side chain.
amine group.
acid group.
nitrate cluster.
Answer: b) amine group.
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3. The portion of an amino acid that contains nitrogen is called the
side chain.
amine group.
acid group.
nitrate cluster.
Answer: b) amine group.
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4. Nonessential amino acids are
amino acids that the body does not need for normal functioning.
amino acids that the body is unable to synthesize.
amino acids that the body is able to synthesize in sufficient quantities to meet its needs.
amino acids such as phenylalanine that the body cannot metabolize.
Answer: c) amino acids that the body is able to synthesize in sufficient quantities to meet its needs.
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5. Nonessential amino acids are
amino acids that the body does not need for normal functioning.
amino acids that the body is unable to synthesize.
amino acids that the body is able to synthesize in sufficient quantities to meet its needs.
amino acids such as phenylalanine that the body cannot metabolize.
Answer: c) amino acids that the body is able to synthesize in sufficient quantities to meet its needs.
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6. The process of combining peanut butter and whole-wheat bread to make a complete protein is called
deamination.
vegetarianism.
transamination.
mutual supplementation.
Answer: d) mutual supplementation.
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7. The process of combining peanut butter and whole-wheat bread to make a complete protein is called
deamination.
vegetarianism.
transamination.
mutual supplementation.
Answer: d) mutual supplementation.
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8. Polypeptides in the small intestine are broken down by
hydrochloric acid.
pepsin.
proteases.
phosphofructokinase.
Answer: c) proteases.
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9. Polypeptides in the small intestine are broken down by
hydrochloric acid.
pepsin.
proteases.
phosphofructokinase.
Answer: c) proteases.
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10. Proteins
and carbohydrates are the body's two primary sources of energy.
are taken from the blood and body tissues when needed for energy.
are converted by the liver to urea, which is transported to the kidneys for excretion in urine.
contribute about 28% of an average adult's energy needs.
Answer: b) are taken from the blood and body tissues when needed for energy.
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11. Proteins
and carbohydrates are the body's two primary sources of energy.
are taken from the blood and body tissues when needed for energy.
are converted by the liver to urea, which is transported to the kidneys for excretion in urine.
contribute about 28% of an average adult's energy needs.
Answer: b) are taken from the blood and body tissues when needed for energy.
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12. Alyson is a 22-year-old vegetarian athlete training to compete in the New York City marathon. Her daily recommended protein intake is about
1.3 to 1.5 grams per kilogram of body weight.
1.2 to 1.4 grams per kilogram of body weight.
0.9 to 1.0 grams per kilogram of body weight.
0.8 grams per kilogram of body weight.
Answer: a) 1.3 to 1.5 grams per kilogram of body weight.
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13. Alyson is a 22-year-old vegetarian athlete training to compete in the New York City marathon. Her daily recommended protein intake is about
1.3 to 1.5 grams per kilogram of body weight.
1.2 to 1.4 grams per kilogram of body weight.
0.9 to 1.0 grams per kilogram of body weight.
0.8 grams per kilogram of body weight.
Answer: a) 1.3 to 1.5 grams per kilogram of body weight.
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14. Which of the following statements about high-protein diets is true?
Research evidence linking high-protein diets to an increased risk for heart attacks and strokes is conclusive.
Research evidence linking high-protein diets to an increased risk for bone fractures is conclusive.
Research suggests that higher intakes of animal and soy protein protect bone in older women.
Both a and b are true.
Answer: c) Research suggests that higher intakes of animal and soy protein protect bone in older women.
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15. Which of the following statements about high-protein diets is true?
Research evidence linking high-protein diets to an increased risk for heart attacks and strokes is conclusive.
Research evidence linking high-protein diets to an increased risk for bone fractures is conclusive.
Research suggests that higher intakes of animal and soy protein protect bone in older women.
Both a and b are true.
Answer: c) Research suggests that higher intakes of animal and soy protein protect bone in older women.
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16. Which of the following is a good source of protein, fiber, and healthful, unsaturated fats?
red meat
skim milk
green, leafy vegetables
walnuts
Answer: d) walnuts
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17. Which of the following is a good source of protein, fiber, and healthful, unsaturated fats?
red meat
skim milk
green, leafy vegetables
walnuts
Answer: d) walnuts
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18. Which of the following meals would be appropriate in a balanced and adequate vegan diet?
rice, pinto beans, acorn squash, soy butter, and almond milk
veggie dog, bun, and a banana–yogurt milkshake
brown rice and green tea
egg salad on whole-wheat toast, broccoli, carrot sticks, and soy milk
Answer: a) rice, pinto beans, acorn squash, soy butter, and almond milk
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19. Which of the following meals would be appropriate in a balanced and adequate vegan diet?
rice, pinto beans, acorn squash, soy butter, and almond milk
veggie dog, bun, and a banana–yogurt milkshake
brown rice and green tea
egg salad on whole-wheat toast, broccoli, carrot sticks, and soy milk
Answer: a) rice, pinto beans, acorn squash, soy butter, and almond milk
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20. In sickle cell anemia, a single amino acid in hemoglobin is changed.
red blood cells lose their characteristic doughnut-like shape.
normal blood flow is disrupted.
all of the above are true.
Answer: d) all of the above are true.
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21. In sickle cell anemia, a single amino acid in hemoglobin is changed.
red blood cells lose their characteristic doughnut-like shape.
normal blood flow is disrupted.
all of the above are true.
Answer: d) all of the above are true.
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