What is the primary role of the normal, thriving intestinal bacterial population?
a. It helps degrade meat and dairy proteins.
b. It helps prevent infectious bacteria from attacking the system.
c. It synthesizes vitamin D, which can be absorbed into the body.
d. It synthesizes several amino acids, which can be absorbed into the body.
e. It aids in the absorption of essential nutrients.
ANS: B
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Marcel generally goes for a 30-minute run on his lunch break. Today the temperature is projected to be above 90oF and Marcel is slightly concerned about heat stress on his run. To avoid heat stress, you might recommend that Marcel not take his regular outdoor run when ________.
A. the sun is bright and there are few clouds B. there is very little air movement (i.e., wind) C. All of the choices are correct. D. the relative humidity exceeds 50-60 percent E. the air temperature is above 80oF
Which fat-soluble vitamin is involved in gene expression, vision, immune defense, reproduction, and growth of bones and the body?
1.A 2.D 3.E 4.K
A well-known characteristic of Graves' disease, but not other types of hyperthyroidism, is:
A. goiter B. hypertension C. exophthalmos D. deformed fingernails E. blue-colored lips
The renal threshold refers to the glucose level at which the kidneys
a. are damaged. b. begin to spill glucose into the urine. c. can only eliminate half of the glucose in the urine. d. function at less than 30% of the expected level.