Practice Quizzes

Chapter 6: Proteins and Amino Acids

1: Amino acids contain the following elements EXCEPT
calcium.
hydrogen.
nitrogen.
oxygen.
2: An indispensable amino acid is one that
cannot be passed from the mother to the fetus.
is unlikely to be found in plant foods.
must be present so other amino acids can be absorbed.
cannot be made by the body.
3: A polypeptide contains more than _____ amino acids.
4 amino acids
6 amino acids
8 amino acids
10 amino acids
4: This type of protein is the most abundant protein in mammals and gives skin and bone their elastic strength
collagen
keratin
motor proteins
hormones
5: The digestion of protein begins in the
mouth.
stomach.
intestine.
colon.
6: The molecule in the cytoplasm that carries amino acids to the site of protein synthesis is
DNA.
mRNA.
tRNA.
rRNA.
7: Protein-energy malnutrition is most common in
children
women of child-bearing age
middle-aged men
menopausal women
8: High protein intakes can be harmful for people with
anorexia nervosa
kidney disease
Lyme disease
none of the above
9: Which condition would increase a person’s protein needs the most?
common cold
muscle-building activities
fever
severe burn
10: What food would be the best protein complement to rice in a meal?
whole grain bread
red beans
broccoli
applesauce
11: The amino acid in a food protein that has the lowest chemical score is the _____ amino acid.
controlling
regulating
complementing
limiting
12: Evaluating a protein using the PDCAAS takes into account the chemical score and the amount that’s
digested.
oxidized.
retained.
excreted.
13: In general, this type of malnutrition results from insufficient energy intake that does not meet the body's requirements
protein-protein malnutrition
protein-energy malnutrition
kwashiorkor
marasmus
14: Vegan diets tend to be low in
vitamin C.
phytates.
vitamin B12.
all of the above
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