Which of the following statements about diffusion is true?
"1. It requires integral proteins i...
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Physics, 18.03.2020 03:54 vnfrancis3716
Which of the following statements about diffusion is true?
"1. It requires integral proteins in the cell membrane. 2. It is very rapid over long distances. 3. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration. 4. It is an active process in which molecules move from a region of lower concentration to one of higher concentration. 5. It requires an expenditure of energy by the cell."
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