Which of the following processes does NOT use (?? ??????) a carrier protein to transport substances across the plasma membrane ? Select one: a. simple diffusion b. sodium-potassium pump c. facilitated diffusion d. active transport
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Simple diffusion does not require a carrier protein, as it involves the movement of molecules from an area of high concentration to an area of low concentration without the need for any additional energy or proteins. b. Sodium-potassium pump uses a carrier Show more…
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