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State two reasons why some molecules can pass through a certain membrane, but other molecules can not.

Respuesta :

Parms364
The cell membrane has selective permeability and chooses which to pass through. Non polar molecules can pass easily with diffusion, but ions cannot.
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Answer:

Size and polarity

Explanation:

I can think of two reasons:

  1. Size — the molecules may be too big to pass through the pores of the membrane
  2. Polarity — polar molecules and ions cannot pass through a nonpolar membrane.

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