The diffusion of any substance across a membr | vedclass

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(D) Diffusion is a passive process where substances move from a region of higher concentration to a region of lower concentration.For a substance to d

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Both $(B)$ and $(C)$

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(D) Diffusion is a passive process where substances move from a region of higher concentration to a region of lower concentration.For a substance to diffuse across a biological membrane (which is primarily a lipid bilayer),it must be able to pass through the lipid phase.Therefore,the rate of diffusion depends on the solubility of the substance in lipids.Additionally,the size of the molecule also influences the rate of diffusion,as smaller molecules diffuse more easily than larger ones.Thus,the diffusion of a substance across a membrane depends on both its solubility in lipids and its molecular size.

The diffusion of any substance across a membrane depends on which of the following?

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