Copyright © 2008 FunnelBrain LLC. All rights reserved. *AP and Advanced Placement Program are registered trademarks of the College Board, which was not involved in the production of, and does not endorse, this product
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.
Total Views: 1026355