How do vitamins function in the human body? Select all that apply. Antioxidants Components of enzymes Components of cell membranes Hormones that affect gene expression Dietary fibers to increase gastrointestinal motility
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Vitamins are essential for normal cell function. They are important because they (A) function as an energy source (B) are hormones (C) directly assist in the normal conduction of impulses (D) resist pH changes (E) enable enzymes to function normally
Shaiju T.
SAMPLE TEST
Biology E/M Sample Test 1
Select each of the following functions of vitamin A. Select one or more: a. Aids reproduction, probably by keeping the secretion-producing lining of the reproductive tract healthy b. Stimulates the kidney to reabsorb calcium, and decreases calcium excretion c. Helps produce bone cells needed for growth and is required for bone remodeling d. Helps to prevent cardiovascular disease by protecting against lipid peroxidation e. Plays an important role in helping to maintain the health of epithelial tissue f. Stabilizes cell membranes and defends against free radical attack
Maitreya E.
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