Chapter 7

Last update by Babara on 09/08/2014
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Which of the following processes includes all others?

A) osmosis

B) diffusion of a solute across a membrane

C) facilitated diffusion

D) passive transport

E) transport of an ion down its electrochemical gradient

Answer:

D) passive transport



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  • feldman2009
    Answered in Chapter 7

    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.

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