Which is correct about why a person's metabolic rate naturally declines with age?
A. because of the natural gain of muscle mass
B. because of the tendency for less daily physical activity
C. because bone mass remains the same
D. because older people eat less food
B
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Metabolism is regulated by ________.
A. ATP levels in the individual cells B. hormones such as insulin C. the presence and activity of enzymes D. All of these choices are correct.
The weaker chemical bonds that form between amino acids that stabilize the structure create the ________ structure.
A. primary B. secondary C. tertiary D. quaternary
Which of the following is the principal carbohydrate in milk?
a. galactose b. fructose c. sucrose d. lactose
What is the chief reason that many people with lactose intolerance can consume foods containing some lactose without suffering any symptoms?
a. A change occurs in the GI bacteria b. Intestinal lactase enzyme can re-appear in adequate amounts c. The lactose-containing foods must be eaten only as part of a full meal d. The lactose-containing foods must first be heated to 100° C to degrade lactose