When vasodilation of the blood vessels in the skin occurs,
a. the skin temperature becomes warmer than the core temperature.
b. the insulative capacity of the skin is increased.
c. heat will be lost from the body if the air temperature is cooler than the skin temperature.
d. both (b) and (c) above.
e. all of these answers.
C
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Which of the following is an active proteolytic enzyme?
a. pepsinogen b. chymotrypsinogen c. procarboxypeptidase d. secretin e. None of the above
The glomerulus is surrounded by which of the following?
a) vasa recta b) juxtaglomerular apparatus c) glomerular capsule d) macula densa
Manufacturers of some medications used to treat heartburn advertise that their products shut down the acid-producing pumps in the stomach. Where are these "acid-producing pumps"? In other words, which type of gastric gland cell secretes acid?
A. Enteroendocrine cells B. Surface mucous cells C. Parietal cells D. Mucous neck cells E. Chief cells
An active site is the part of a substrate molecule that binds an enzyme.
Answer the following statement true (T) or false (F)