Question

cell membrane and transport: learn how transporters keep cells healthy english lets find out how much you know about this topic! this will help us personalize your learning experience, and dont worry, it wont affect your grades. question 3 of 10 which of these substances would most easily pass directly through the lipid portion of a plasma membrane by simple diffusion? small, nonpolar molecules (e.g., carbon dioxide). large, uncharged polar molecules (e.g., glucose). charged ions (e.g., sodium ions).

Explanation:

The lipid - based plasma membrane is non - polar. Small, nonpolar molecules can dissolve in the nonpolar lipid bilayer and pass through by simple diffusion. Large, uncharged polar molecules and charged ions cannot easily pass through the nonpolar lipid portion due to their polarity and charge.

Answer:

Small, nonpolar molecules (e.g., carbon dioxide).