Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

Which features must be present for diffusion to be efficient? 1 a large surface area 2 a diffusion pathway that is short 3 keeping a constant diffusion gradient

  • A1, 2 and 3
  • B1 and 2 only
  • C1 and 3 only
  • D2 and 3 only

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