6. The Membrane
Simple and Facilitated Diffusion
Multiple Choice
Multiple ChoiceCells A and B are the same size, shape, and temperature, but cell A is metabolically less active than cell B, and cell B is actively converting oxygen to water in cellular respiration. Oxygen will diffuse more rapidly into cell __________ because __________.
A
A; the concentration gradient there is shallower
B
A; its membrane transport proteins will not be saturated
C
B; the oxygen molecules inside cell B have a higher kinetic energy
D
B; the gradient of oxygen is oriented in the opposite direction compared to cell A
E
B; the diffusion gradient in cell B is steeper
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