Which of the following would cause an immediate reduction in the amount of potassium leaking out of a cell?
AHyperpolarizing the membrane potential
BReducing the activity of the sodium-potassium pump
CDecreasing the extracellular potassium concentration
DIncreasing the permeability of the membrane to potassium
Which of the following events does NOT occur in rods in response to light
AOpening of Na+ channels
BActivation of transducin
CStructural changes in rhodopsin
DDecreased intracellular cGMP
Two solutions with equal osmotic pressures are called:
ANormal solution
BHypertonic solution
CIsotonic solution
DHypotonic solution
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