Which statement regarding vitamin C is true?
a. A lack of the vitamin results in beriberi
b. It inhibits iron absorption.
c. It prevents the common cold.
d. It helps to produce carnitine.
e. An excess of the vitamin can result in gallstones.
d
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Good sources of potassium include all of the following EXCEPT:
a. tomatoes b. bananas c. snack crackers d. potatoes
Which of the following describes the structure of an antibody?
a. Tripeptide b. Small nucleic acid c. Huge protein molecule d. Large peptide molecule e. Location of carbons
Which of the following groups of Americans is most at risk of undernutrition?
A. School-age children B. Alcoholics C. Teenage boys D. Pregnant women
Which of the following is not a function of water in the body?
A) functions as a coenzyme B) helps transport nutrients and oxygen C) lubricates joints D) helps maintain body temperature