The clearance of what substance provides the best estimate of renal blood flow rate?
A) creatine
B) sodium
C) glucose
D) inulin
E) PAH
Ans: E) PAH
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Cholesterol, though it is NOT an energy molecule, has importance in the body because it ________
A) is a stabilizing component of the plasma membranes and is the parent molecule of steroid hormones B) helps mobilize fats during periods of starvation C) helps provide essential nutrients to the brain and lungs D) enters the glycolytic pathway without being altered
Diffusion and active transport are likely to be important in
A. mastication of food. B. absorption of food. C. elimination of undigested food. D. propulsion of food through the digestive tract. E. mixing of food.
The lingual salivary glands are
A. unicellulilar endocrine glands. B. unicellulilar exocrine glands. C. multicellulilar endocrine glands. D. multicellulilar exocrine glands.
Which statement below best describes why diabetics are two times more likely to develop cardiovascular disease than non-diabetics?
A) Diabetics tend to be obese and, therefore, cannot get enough aerobic exercise. B) Diabetes leads to high cholesterol levels and, therefore, atherosclerosis. C) Diabetics must take insulin and, therefore, their blood glucose levels fluctuate causing tremendous stress on all systems of their bodies. D) Diabetes leads to heart disease because of the side effects of insulin on the cardiovascular system. E) Diabetes promotes bacterial infections which will eventually destroy the he