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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 by the cell C) it is a passive process D) it occurs when molecules
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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 by the cell
C) it is a passive process
D) it occurs when molecules move from a region of lower concentration to one of higher concentration
E) it requires integral proteins in the cell membrane

User CSolanaM
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The correct answer is D
User Farris
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