Facilitated diffusion across a membrane requires ______ and moves a solute ________ its concentration gradient. a. transport proteins... up (against) b. transport proteins... down c. energy and transport proteins... up d. energy and transport proteins... down
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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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Facilitated diffusion requires... A. A concentration gradient. B. Energy. C. Proteins to transport molecules across the membrane. D. A and C are correct. E. A, B and C are correct (All of the above).
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Which of the following is incorrect regarding facilitated diffusion? a. It is a passive process. b. It allows the movement of molecules from areas of low concentration to areas of high concentration. c. It may use either channel or carrier proteins. d. It allows the rapid transport of glucose across the membrane
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