Which of the following statements about vitamin B6 is false?
A. The term vitamin B6 refers to a family of compounds: pyridoxine, pyridoxal, and pyridoxamine
B. Foods containing vitamin B6 should be included in the diet daily
C. The richest food sources of vitamin B6 are meats, liver, vegetables, and whole grains
D. As a coenzyme, vitamin B6 acts in the conversion of the amino acid tryptophan to one of the essential vitamins
E. Vitamin B6 is fat-soluble and, therefore, can be stored in the body
Answer: E
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The primary role of most of the B-vitamins is to
A. directly provide the body with energy. B. act as coenzymes. C. maintain and repair body tissues. D. maintain acid-base balance.
Sarcopenia is
A. the increase of abdominal fat that occurs with age. B. the decrease of fat on hips and thighs that occurs with age. C. the decrease of muscle mass and strength that occurs with age. D. the gains in lean body mass that older people make when they perform resistance exercise.
Bernetta has an autoimmune disease that affects salivary glands. As a result of this condition, Bernetta
A. digests food too rapidly. B. cannot tolerate eating cold foods. C. has trouble swallowing. D. develops numerous stomach ulcers.
Which of the following acts as a constituent of coenzyme A in cellular metabolism?
a. Thiamin b. Biotin c. Riboflavin d. Pantothenic acid