Diffusion that occurs through is called facilitated diffusion.

membrane pores

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carrier proteins

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stomata

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Solution

The correct option is B carrier proteins
Movement of molecules from a region of higher concentration to a region of lower concentration through carrier proteins is called facilitated diffusion. Carrier proteins are proteins that are embedded in the plasma membrane and forms a channel that allows the molecules to pass through.

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Similar questions

Assertion: Both facilitated diffusion and active transport are mediated through membrane proteins.

Reason: Only active transport is selective in action.

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