Rather than cholesterol, plants produce cholesterol-like compounds called phytosterols. Phytosterols have been shown to
A. substitute for cholesterol in the human body.
B. be readily absorbed in the human body.
C. lower blood cholesterol levels through unknown mechanisms.
D. be readily incorporated into cell membranes in the human body.
Question 2
Functions of cholesterol include all of the following except:
A. It is a precursor for bile acids, which are important in lipid digestion.
B. It is used to synthesize reproductive hormones such as testosterone and estrogen.
C. It is incorporated into cell membranes, where it helps maintain flexibility.
D. It is used for energy production when fatty acids are in short supply.