Which of the following does not require carri | vedclass

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(A) Simple diffusion is a passive process where molecules move across the cell membrane from a region of higher concentration to a region of lower con

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Simple diffusion

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(A) Simple diffusion is a passive process where molecules move across the cell membrane from a region of higher concentration to a region of lower concentration without the assistance of any carrier proteins or energy expenditure.In contrast,facilitated diffusion,$Na^+$-$K^+$ transport,and active transport of sugars and amino acids all require specific carrier proteins or membrane channels to move substances across the lipid bilayer.

Which of the following does not require carrier molecules during transport through cell membranes?

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