Multiple-Choice Questions

1) What is the primary role of the B-vitamins?

A) provide the body with energy

B) act as coenzymes

C) maintain and repair body tissues

D) maintain acid-base balance

2) The first B-vitamin discovered was

A) thiamin.

B) niacin.

C) folate.

D) vitamin B12.

3) Chromium assists in the uptake of which of the following?

A) calcium

B) sodium

C) potassium

D) glucose

4) Which statement regarding thiamin is FALSE?

A) It plays a critical role in the breakdown of glucose for energy.

B) It plays a role in the synthesis of neurotransmitters.

C) It is often toxic when consumed in excess.

D) It acts as a coenzyme in the metabolism of branched-chain amino acids.

5) A person suffering from fatigue, muscle wasting, and nerve damage is likely suffering from which of the following deficiency diseases?

A) cretinism

B) beriberi

C) pellagra

D) macrocytic anemia

6) Which of the following is the BEST source of thiamin?

A) citrus fruits

B) green leafy vegetables

C) milk

D) whole and enriched cereals and grains

7) Wernicke-Korsakoff syndrome is associated with the decreased absorption and utilization of

A) glucose.

B) thiamin.

C) riboflavin.

D) protein.

8) Which of these nutrients is destroyed by exposure to light?

A) riboflavin

B) iron

C) vitamin B12

D) vitamin D

9) Which of the following is NOT a symptom of pellagra?

A) dermatitis

B) diarrhea

C) dementia

D) dizziness

10) Which vitamin can be made from the amino acid tryptophan?

A) niacin

B) vitamin C

C) vitamin K

D) vitamin B12