A compound in food that can be converted into an active vitamin inside the body is known as a(n):
a. coenzyme.
b. predecessor.
c. antivitamin.
d. provitamin.
e. enzyme.
Q. 2By definition, a vitamin is all of the following except:
a. indispensable to body function.
b. required to prevent deficiency diseases.
c. an energy-yielding nutrient.
d. an organic compound.
e. needed in minute amounts.
Q. 3The claim that supplements are necessary because today's foods lack sufficient nutrients to support health is a marketing trap.
a. True
b. False
Indicate whether the statement is true or false
Q. 4No convincing evidence indicating benefits from antioxidant supplements in well-nourished people exists.
a. True
b. False
Indicate whether the statement is true or false
Q. 5The B vitamins work together with enzymes in the metabolism of energy nutrients and in the making of new cells.
a. True
b. False
Indicate whether the statement is true or false
Q. 6Infants are born with adequate vitamin K in their intestinal tracts.
a. True
b. False
Indicate whether the statement is true or false
Q. 7Vitamin D deficiency in children can cause bowed legs, an abnormality seen in the disease rickets.
a. True
b. False
Indicate whether the statement is true or false
Q. 8The most familiar function of vitamin A is to sustain normal eyesight.
a. True
b. False
Indicate whether the statement is true or false
Q. 9Water-soluble vitamins are absorbed directly into the blood and thus stored more readily in tissues.
a. True
b. False
Indicate whether the statement is true or false