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Biology, 08.10.2019 08:30 elizabethprasad2
Which of the following statements is correct about diffusion?
a) it may require a transport protein.
b) it is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.
c) it requires an expenditure of energy by the cell.
d) it involves movement of molecules down a concentration gradient and may require a transport protein.
e) it is an active process in which molecules move from a region of lower concentration to one of higher concentration.
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Which of the following statements is correct about diffusion?
a) it may require a transport p...
a) it may require a transport p...
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