Molecules that have properties of both polar and nonpolar molecules are called
A. hydrophobic.
B. hydrophilic.
C. amphipathic.
D. unipolar.
E. bipolar.
C
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Which of the following statements is NOT true?
a. Birds learn by repetition b. Birds are territorial c. Birds try to be the head of the household d. Birds should be yelled at to correct and punish them
Which of the following is not a function of the Na+-K+ pump?
A) Heat production B) Regulation of cell volume C) Maintenance of membrane potential D) Secondary active transport E) Transport of Na+ into the cell and K+ out of the cell
Consider the following situation: Sympathetic preganglionic axons enter a sympathetic chain ganglia. In order for these axons to reach collateral ganglia, they must now travel through
A. a splanchnic nerve. B. a sympathetic nerve. C. a gray ramus communicans. D. a white ramus communicans. E. a dorsal root ganglion.
Which of these is an example of a hypertonic solution?
A. 200 mM NaCl B. 300 mM glucose C. 100 mM MgCl2 D. 400 mM urea E. 100 mM NaCl