Multiple Choice
Which of the following describes how facilitated diffusion is powered?
A) ATP is required directly.
B) Facilitated diffusion is "free of cost."
C) Facilitated diffusion is powered by endocytosis.
D) The sodium-potassium pump powers facilitated diffusion.
E) Energy is required to do the work of establishing and maintaining a concentration gradient.
Correct Answer:

Verified
Correct Answer:
Verified
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