PROTEIN PRACTICE EXAM
1. Which of the following accounts for the differences between different amino
acids:
a. the amine group
b. the side chain
c. the acid group
d. a and b
2. When amino acids are degraded for energy, their amine groups are stripped off
and used elsewhere or made into ____________by the liver:
a. bile
b. urea
c. glucose
d. urine
3. All of the following cause denaturation of protein EXCEPT
a. bases
b. alcohol
c. heat
d. light
e. salts of heavy metals
4. Essential amino acids:
a. must be consumed in the diet
b. are the most efficient energy sources for the body
c. can be synthesized by the body
d. are found mostly in plant foods
5. In protein synthesis, the amino acid present in the LEAST amount or missing
entirely is called the ____________amino acid
a. essential
b. complete
c. incomplete
d. limiting
6. If protein amino acids are eaten in excess of need:
a. they will be excreted without change
b. they will be stored as proteins in the muscle until needed
c. they will be converted to vitamins
d. the nitrogen-containing group will be removed and made into urea and
excreted by the kidney
7. The process of deamination refers to:
a. hydrogenation of a PUFA
b. formation of glycogen in the liver or muscle
c. synthesis of cholesterol
d. the removal of the nitrogen group from an amino acid
8. All of the following are functions of protein in the body EXCEPT:
a. growth and maintenance
b. production of enzymes
c. production of cholesterol
d. antibody formation
9. Which is the source of COMPLETE protein
a. fish
b. almonds
c. wheat
d. green beans
10. Which of the following is TRUE about INCOMPLETE proteins
a. found primarily in animal foods
b. contain all 9 of the essential amino acids
c. the best protein for building new body tissue
d. contain inadequate amounts of 1 or more essential amino acids
11. During deamination of amino acids to produce energy, nitrogen is released from
the amino acid. That nitrogen is converted to:
a. urea and excreted by the kidneys
b. carbon dioxide and exhaled by the lungs
c. glucose and used for energy
d. fat and used for energy
12. In a healthy adult, protein synthesis should:
a. equal protein breakdown
b. be less than protein breakdown
c. be greater than protein breakdown
d. all answers are false
13. Any excess protein that you eat:
a. can be stored and saved for later use
b. goes to the liver and changed into bile
c. can be processed and stored as body fat
d. cannot be digested and absorbed
14. Determine the approximate protein need of a woman weighing 230 pounds. Her
ideal body weight is 128 pounds.
a. 46 grams
b. 83 grams
c. 128 grams
d. 230 grams
ANSWERS TO PROTEIN EXAM:
1. B
2. B
3. D
4. A
5. D
6. D
7. D
8. C
9. A
10. D
11. A
12. A
13. C
14. A