Multiple choice

The pore sizes in the plasma membrane are about

  1. 17 Ao

  2. 8 Ao

  3. 25 Ao

  4. 1 - 2 Ao
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plasma membrane pores typically measure around 8 Ångströms, allowing small molecules and ions to pass while restricting larger molecules. This size is crucial for selective permeability and controlling molecular transport across membranes.

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