Conduction of nerve signals and contraction of muscles depends on the proper balance of
A) nitrogen. B) glucose. C) electrolytes. D) buffers.
Q. 2Which of the following groups would have the lowest risk for toxicity from eating shark and
other fish with high levels of environmental contaminants?
A) children B) pregnant women
C) breastfeeding women D) teenage boys
Q. 3The most common sterol in our diet is
A) stanol. B) phytosterol. C) olestra. D) cholesterol.
Q. 4Which of the following statements about the role of hydrochloric acid (HCl) is FALSE?
A) HCl inhibits the digestion of fat so it does not compete with protein digestion.
B) HCl untangles the strands of protein and breaks the peptide bonds.
C) HCl converts pepsinogen into pepsin.
D) HCl denatures protein to allow digestive enzymes to break down the protein.
Q. 5Q. 6Q. 7The letters used to identify the fat-soluble vitamins indicate the
A) compound from which the vitamins are synthesized.
B) abbreviation of the vitamins' chemical name.
C) order of importance that the vitamins play in the body.
D) chronological order in which the vitamins were discovered.
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