Vaccines are effective because they
A. immediately stimulate cellular immunity to eliminate all of the pathogen in the body.
B. inhibit antibodies from having secondary responses.
C. stimulate the development of immunologic memory.
D. increase the number of natural killer cells while decreasing the numbers of T and B cells.
C
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The sodium level inside and outside of a resting cell is an example of the
A. kinetic energy of sodium rushing out of a cell down its concentration gradient. B. kinetic energy of the large difference in sodium concentration on the inside versus the outside of the cell. C. potential energy of a concentration gradient, because sodium is more abundant outside the cell. D. potential energy of an electron transport chain, because sodium has an extra electron to donate. E. conversion of potential energy to kinetic energy, because sodium can never move across the cell membrane and must move across its surface.
What term is given to considerations such as the size, shape, and weight of body segments?
A. cybernetic B. anthropometric C. kinematic D. kinetic
Going from the interior to the exterior of a nerve, the layers of connective tissue would be:
a. perineurium, epineurium, fascicle b. endoneurium, perineurium, epineurium c. epineurium, perineurium, fascicle d. epineurium, perineurium, endoneurium
Fat absorption through the plasma membrane of epithelial cells ________
A) Is accomplished by cotransporters that use the concentration gradient of Na+ outside of the cells B) requires vesicular, active transport of the relatively large fatty acids and monoglyceride C) occurs by simple diffusion because lipids are able to penetrate the hydrophobic fatty acid tails within the plasma membrane D) requires enzymes attached to the brush border to further breakdown the fats