Before B cells secrete antibodies, they differentiate into ________.
A. stem cells
B. T cells
C. antigen-presenting cells
D. macrophages
E. plasma cells
Answer: E
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Centripetal force is related to which of the following?
A. radial acceleration B. tangential acceleration C. both A and B D. none of the above
Which of the following is not a graded potential?
a. end-plate potential b. action potential c. slow-wave potential d. receptor potential e. postsynaptic potential
If a person is normovolemic and consumes a large quantity of a hyperosmotic solution, it will
A) have no effect on cell osmolarity and thereby cell size. B) cause cells to swell due to an increase in the osmolarity of extracellular fluid. C) cause cells to shrink due to an increase in the osmolarity of extracellular fluid. D) cause cells to swell due to a decrease in the osmolarity of extracellular fluid. E) cause cells to shrink due to a decrease in the osmolarity of extracellular fluid
Match the term with the correct definition.A. Small change in the resting membrane potential confined to a small areaB. Charge difference across the plasma membrane when the cell is in an unstimulated stateC. Larger change in resting membrane potential that spreads over entire surface of a cellD. Membrane becomes more positive when Na+ diffuse into cellE. Return to the resting membrane potentialAction potential
Fill in the blank(s) with the appropriate word(s).