1. For a compound to be classified as a vitamin, it must
a. be synthesized by the body.
b. be required in large quantities.
c. perform a vital
... [Show More] function.
d. be water soluble.
ANS: C
For a compound to be defined as a vitamin, it must be a vital, organic, dietary substance that is
not a carbohydrate, fat, protein, or mineral and is necessary in only very small amounts to
perform a specific metabolic function or prevent an associated deficiency. It also cannot be
manufactured by the body in sufficient amounts to sustain life and must be supplemented by
the body.
DIF: Cognitive Level: Comprehension REF: p. 85 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation
2. A vitamin that behaves more like a hormone than a vitamin is vitamin
a. A.
b. D.
c. E.
d. K.
ANS: B
Vitamin D is a prohormone made in the skin by sunlight.
DIF: Cognitive Level: Knowledge REF: p. 87 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation
3. The provitamin form of vitamin A that is found in plant pigments is
a. beta-carotene.
b. chlorophyll.
c. beta-xanthophyll.
d. calciferol.
ANS: A
Beta-carotene is the provitamin form of vitamin A found in plant pigments. The body converts
it to vitamin A, making it a primary source of the vitamin.
DIF: Cognitive Level: Knowledge REF: p. 86 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation
4. Spinach, carrots, and sweet potatoes are good sources of
a. beta-carotene.
b. vitamin A.
c. vitamin D.
d. vitamin E.
TEST BANK FOR WILLIAMS' BASIC NUTRITION AND DIET THERAPY 15TH EDITION BY NIX
NURSINGTB.COM
N U R S I N G T B . C O M
ANS: A
Carotene is the group name of three red and yellow pigments (alpha-, beta-, and
gamma-carotene) found in dark-green and yellow vegetables and some fruits. The body
converts beta-carotene to vitamin A.
DIF: Cognitive Level: Application REF: pp. 87-88 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptatio [Show Less]