Which of the following statements best describes facilitated diffusion across cell membranes? the transported species move down the concentration gradient (from high to low concentration), with the help of a carrier/channel protein the transported species move up the concentration gradient (from low to high concentration), with the help of a carrier/channel protein solute transport is always coupled to an energy source (e.g. ATP hydrolysis) All of the options are correct none the options correctly describes facilitated diffusion
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Step 1: Facilitated diffusion refers to the movement of molecules down the concentration gradient with the help of a carrier or channel protein. Show more…
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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
Which of the following statements describes the role of the transport protein in facilitated diffusion? Transport proteins provide the energy for diffusion of the solute. Transport proteins organize the phospholipids to allow the solute to cross the membrane. Transport proteins provide a protein site for ATP hydrolysis, which facilitates the movement of a solute across a membrane. Transport proteins allow solutes to move passively down their concentration gradients across the membrane. Transport proteins provide a low-resistance channel for water molecules to cross the membrane.
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