Proteins that assist the movement of a substance across the membrane are called _________ proteins
A. catalytic
B. cytoskeleton
C. transport
D. identification
E. intercellular attachment
C
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Which of the following does not influence smooth muscle activity?
a. autonomic neurotransmitters b. mechanical stretch c. hormones d. alpha motor neurons e. local metabolites
Overall, PTH (parathyroid hormone) ________ blood phosphate levels.
A. increases B. enhances C. decreases D. has no effect on E. elevates
As parturition nears, the levels of progesterone ______ and the levels of estrogen ______
A. decrease; increase B. increase; decrease C. decrease; decrease D. increase; increase
Why does inhaling deeply and slowly through the nose help to identify an odor?
A. Threshold for odor detection is high. B. More air containing the odor is brought into contact with the olfactory epithelium. C. Receptors in the olfactory epithelium are highly specific. D. The tissue needs more time in contact with the odor. E. Impulses originate slowly in the olfactory epithelium.