Which of the following is NOT true of G-protein complex action?
A. Stimulates a cell by means of extracellular chemical signals.
B. Stimulates a cell by opening ion channels in the plasma membrane.
C. Acts as an intermediate between a receptor and other cellular proteins.
D. Stimulates a cell by activating enzymes associated with the plasma membrane.
E. Stimulates a cell by means of intracellular chemical signals.
A
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B cells can differentiate into plasmocytes, which are responsible for the production and secretion of ________.
Fill in the blank(s) with the appropriate word(s).
Short term adjustments in blood pressure are mediated by
a. baroreceptor reflexes. b. sympathetic system c. renal activity d. both (a) and (b) above. e. both (b) and (c) above.
While a person is sleeping or between meals, blood glucose decreases and insulin level increases.
Answer the following statement true (T) or false (F)
The surface of articular cartilage is
A) slick. B) flat. C) smooth. D) rough. E) both slick and smooth.