Question

(2 of 10)
which of the following are freely permeable through the plasma (phospholipid) membrane?
○ lipids
○ cholesterol
○ oxygen
● two of these are correct
○ all of these are correct

Explanation:

The plasma membrane is a phospholipid bilayer, and substances that are non - polar or small and non - polar can freely diffuse through it. Lipids are non - polar molecules, cholesterol is a lipid - like (steroid) molecule (also non - polar in nature), and oxygen is a small non - polar gas molecule. So all of lipids, cholesterol, and oxygen can freely permeate through the plasma membrane.

Answer:

All of these are correct