Nutrition 1010 - Introductory Nutrition » Summer 2021 » Chapter 6 Quiz

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Question #1
Heavy use of soy products in place of meat can inhibit absorption of what nutrient?
A.   B12
B.   zinc
C.   phytochemicals
D.   vitamin C
E.   Iron
Question #2
The variable part of an amino acid is the __________.
A.   amino group
B.   backbone
C.   side chain
D.   acid group
E.   carbon bond
Question #3
Proteins can be denatured by all of the following EXCEPT __________.
A.   heat
B.   mercury
C.   freezing
D.   radiation
E.   stomach
Question #4
All of these are proteins EXCEPT ________.
A.   glycogen
B.   collagen
C.   insulin
D.   antibodies
Question #5
Protein digestion and denaturing begins in the __________.
A.   small intestines
B.   stomach
C.   blood stream
D.   mouth
Question #6
Which of the following is NOT a consequence of protein deficiency?
A.   increased nutrient absorption from the digestive tract
B.   slow growth in children
C.   impaired brain and kidney function
D.   negative nitrogen balance
E.   a weakened immune system
Question #7
Which protein-rich food would be a good source of calcium for vegetarians?
A.   margarine
B.   eggs
C.   kidney beans
D.   flaxseeds
E.   almonds
Question #8
The process of protein turnover involves the ________.
A.   use of amino acids that have been conserved from the breakdown of old cells
B.   annual replacement of old cells with new protein that has entered the body in food
C.   conversion of half the protein we eat to glucose for energy
D.   loss of amino acids by excretion through the kidneys when cells die
E.   excretion of intracellular working proteins as old cells wear out
Question #9
Which statement regarding digestion and absorption of proteins is true?
A.   Amino acids need a carrier in the bloodstream because they do not transport very well alone.
B.   Proteins are broken down into individual amino acids and absorbed by all intestinal cells at an equal rate.
C.   Protein digestion and absorption require some form of carbohydrate.
D.   Cells in the small intestine possess different sites for absorbing different types of amino acids, which causes competition among amino acids at the absorption sites.
E.   Larger peptide molecules must be completely broken down into amino acids to be absorbed into the bloodstream from the intestine.
Question #10
What is an important function of the amino acid tyrosine?
A.   It is a precursor of vitamin C.
B.   It is used to make the vitamin niacin.
C.   It is used to make the neurotransmitter serotonin.
D.   It is used to make the brown pigment melanin.
E.   It is converted into the hormone insulin.
Question #11
The most easily digestible form of protein can be found in which of the following foods?
A.   black beans
B.   peanuts
C.   pasta
D.   eggs
E.   peppers
Question #12
What is NOT one of the beneficial characteristics of a vegetarian diet?
A.   It promotes a leaner body type.
B.   It provides more phytochemicals.
C.   It reduces the risk of cancer.
D.   It provides more saturated fat.
E.   It provides more antioxidant nutrients and fiber.
Question #13
is/are important for the control of protein synthesis.
A.   RNA
B.   DNA
Question #14
What is required for legumes to "fix" nitrogen?
A.   genetic modification
B.   fertilizer
C.   bacteria
D.   UV light
E.   crop rotation
Question #15
What advice would you give to a friend who has started a gluten-free diet to lose weight?
A.   She should be successful because it is an excellent way to lose weight.
B.   Gluten-free weight-loss diets offer no advantages over other low-calorie diets.
C.   The gluten-free diet will help relieve any digestive symptoms she may have.
D.   Even if she does not have celiac disease, she will benefit from removing gluten from her diet.
E.   Gluten-free diets are useful because they also help prevent cancer.
Question #16
Essential amino acids are those that play an important role in the body and can only be obtained through supplementation.
A.   TRUE
B.   FALSE
Question #17
Who would benefit most from eating a variety of protein foods so that amino acids that are low in some foods will be supplied by the others?
A.   an omnivore
B.   a pregnant woman
C.   a vegan
D.   a lacto-ovo vegetarian
E.   a carnivore
Question #18
Would you recommend an amino acid supplement to a friend who is recovering from illness and wants to promote muscle mass gain? Why or why not?
A.   No; Extra carbohydrate and fat, but not extra protein, are needed for recovery from illness.
B.   No; Whole protein is better handled by the digestive system and will promote muscle mass gain better than amino acid supplements.
C.   Yes; Taking amino acid supplements helps keep the digestive system from overworking while you recover from illness.
D.   Yes; But, one should also do plenty of exercise to promote muscle regain.
E.   Yes; Amino acid supplements are an excellent way to quickly provide energy to muscles for rebuilding.
Question #19
The roles of protein in the body include which of the following? I. balance of acids and bases II. thinning of blood III. providing energy IV. transport of substances in the bloodstream V. cell structure
A.   I, III, and IV only
B.   I, II, IV, and V
C.   I, III, IV, and V
D.   I and V only
Question #20
Proteins play several important roles in the body. What is NOT one of these?
A.   providing an unlimited supply of energy
B.   regulating gene expression
C.   serving as antibodies
D.   maintaining acid-base balance
E.   maintaining fluid and electrolyte balance

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