What affects the diffusion of a substance across a membrane?

What affects the diffusion of a substance across a membrane?
  1. Its solubility in lipids
  2. Its size
  3. Its hydrophilic moiety
  4. Both A) and B)

Solution

Substances that are soluble in lipids diffuse through the membrane faster because they can move easily through the lipid-based membrane.

Asked in: NCERT

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