Chapter 7

Last update by Babara on 09/08/2014
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Which of the following statements is correct about diffusion?

A) It is very rapid over long distances.

B) It requires an expenditure of energy bythe cell.

C) It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.

D) It is an active process in which molecules move from a region of lower concentration to one of higher concentration.

E) It requires integral proteins in the cell membrane.

Answer:
C) It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.

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