76. Facilitated diffusion through a biological membrane is: a. driven by a difference of solute concentration across the membrane. b. driven by energy supplied ATP. c. an endergonic process. d. generally irreversible.
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Step 1: Facilitated diffusion is a passive process, meaning it does not require energy input from ATP. Show more…
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Facilitated diffusion is a. the random movement of a substance from a region of higher concentration to a region of lower concentration. b. the movement of water across the plasma membrane. c. the movement of molecules across the plasma membrane against a concentration gradient with the aid of a carrier protein and energy supplied by the cell. d. the movement of a substance from a region of higher concentration to a region of lower concentration with the aid of a membrane protein.
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Facilitated diffusion across a membrane requires __________ and moves a solute ___________ its concentration gradient. a. transport proteins $\ldots$ up (against) b. transport proteins... down c. energy and transport proteins $\ldots$ up d. energy and transport proteins... down
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