Primer quiz questions Flashcards
The structures of linoleic acid and gamma-linolenic acid differ in their:
a. chain lengths.
b. double bond positions.
c. numbers of double bonds.
d. side chain moieties.
C
An example of a compound that is not considered to be a component of dietary fiber is: a. pectin. b. hemicellulose. c. amylose. d. cellulose.
C
Dietary fats and oils primarily are composed of:
a. triglycerides.
b. polyunsaturated fatty acids.
c. saturated fatty acids.
d. monounsaturated fatty acids.
A
A nutrient is considered to be conditionally essential when:
a. it cannot be replaced by a metabolic precursor.
b. it is malabsorbed.
c. its endogenous production becomes insufficient to satisfy needs.
d. it requires a second essential nutrient to be effective.
C
Vitamin reserves can become depleted because all vitamins are:
a. synthesized inefficiently.
b. essential nutrients.
c. metabolized quickly.
d. excreted rapidly.
B
20. The process of adding a nutrient to manufactured foods as a public health measure is called: a. restoration. b. enrichment. c. fortification. d. supplementation.
C
Food additives can be used:
a. as effective preservatives.
b. without restriction.
c. to compensate for improper processing practices.
d. without risk.
a
Nutrification is the:
a. addition of a nutrient to a food in order to assure the distribution of that
nutrient to a target population group.
b. specific addition of thiamin, riboflavin, niacin, and iron to white flour.
c. structural modification of complex carbohydrates.
d. addition of at least 25% of the RDA of a nutrient to a food product that has
been designed to replace a meal or food item.
a
- Ketones result from the metabolism of:
a. fatty acids.
b. simple sugars.
c. amino acids.
d. complex carbohydrates.
a
The plasmalemma does not incorporate:
a. vitamin A.
b. vitamin E.
c. cholesterol.
d. phospholipids.
a
The failure of a tissue or organ to develop properlyis called:
a. neoplasia.
b. aplasia.
c. hyperplasia.
d. atrophy.
b
Glutamine is the primary energy source for the:
a. liver.
b. heart.
c. small intestine.
d. brain.
c
The metabolic effects of insulin include stimulation of:
a. adipocyte secretion of non-esterified fatty acids.
b. myocyte amino acid uptake.
c. hepatocyte gluconeogenesis.
d. myocyte glycogenesis.
b
The most common skeletal complication of chronic renal failure is:
a. hyperostosis.
b. osteoporosis.
c. rickets.
d. secondary hyperparathyroidism.
d
- Most circulating cholesterol is eliminated from the body after metabolism to:
a. lipoproteins.
b. phospholipids.
c. fecal fat.
d. bile acids.
d
30. Vitamin B12 is a required cofactor in the biochemical pathway through which glucose is produced from the amino acid: a. alanine. b. valine. c. methionine. d. tyrosine.
b
- Copper is a component of:
a. alkaline phosphatase.
b. glycosyl transferase.
c. ceruloplasmin.
d. glucose tolerance factor.
c
- The decarboxylation of pyruvate involves a sequence of reactions that require, as
coenzymes, the four vitamins:
a. thiamin, pantothenic acid, riboflavin and vitamin B12.
b. thiamin, riboflavin, niacin, and vitamin B12.
c. thiamin, pantothenic acid, riboflavin, and niacin.
d. biotin, niacin, pantothenic acid and vitamin B12
c
The size of the free amino acid pool in the human body is regulated by the rate of:
a. oxidation of amino acids.
b. synthesis of nonessential amino acids.
c. urinary excretion of amino acids.
d. skeletal collagen metabolism.
a
- During maximal aerobic exercise, the primary energy source is:
a. fatty acids.
b. lactate.
c. glycogen.
d. glucose.
a
A set of 150 observations has a mean of 5 and a standard deviation of 1.5. The 95% confidence limits (95% CL) of the mean can be calculated by solving the formula: a. 95% CL = 5 ± (1.96)(1.5). b. 95% CL = 5 ± (1.96)[(1.5) 2 /150)] 1/2 . c. 95% CL = 5 ± (1.96)[(1.5) 1/2 /150]. d. 95% CL = 5 ± (1.96)(1.5/150) 1/2 .
b
- A cross-sectionalstudy compared cardiovascular risk factors and resting
metabolic rate (RMR) in 400 sedentary (SED) and 400 resistance trained (RT)
young women. The measured RMR (mean ± standard error of the mean) were
4.31 ± 0.06 kJ/min and 3.99 ± 0.05 kJ/min, respectively. The valid interpretation
of the RMR data is that:
a. RMRSED and RMRRT are not significantly different (p>0.05).
b. RMRSED and RMRRT are significantly different (p<0.05).
c. RMRSED and RMRRT are significantly correlated (p<0.05).
d. RMR is not affected by resistance training.
b
test
test
The relationship between 2 correlated variables is:
a. causal.
b. random.
c. independent.
d. mathematical.
d