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

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