Multiple Choice
The rate of facilitated diffusion of a molecule across a membrane will increase as the concentration gradient of the molecule across the membrane increases to a certain point. Eventually, an increase in the concentration of the molecule will not cause any further increase in facilitated diffusion. This is because:
A) facilitated diffusion requires ATP energy.
B) as the concentration gradient increases, molecules interfere with one another.
C) there are a limited number of carrier proteins in the membrane.
D) the increased concentration gradient causes a situation far from equilibrium.
E) the diffusion constant depends on the concentration gradient.
Correct Answer:
Verified
Correct Answer:
Verified
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