Question

Each cell is surrounded by a cell membrane composed of a lipid bilayer with protein channels interspersed. Which one of the following types of molecules would you expect to pass through most easily?​

Answer 1

Answer:

Small nonpolar molecules, such as O2(oxygen) and CO2(carbon dioxide)

Explanation:

Oxygen and carbon dioxide are soluble in the lipid bilayer (mostly because oxygen and carbon dioxide are lipids) and therefore can readily cross cell membranes. Small uncharged polar molecules, such as H2O(water), also can diffuse through membranes but will have a hard time doing so, but larger uncharged polar molecules, such as glucose(carbohydrates), cannot.

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