Question

Which of the following statements correctly describes the transport of small, lipid soluble solutes across cell membranes?

A. The permeability increases as the solute size decreases.

B. The permeability does not change as the solute size increases.

C. The permeability increases as the solute size increases.

D. The permeability increases as the lipid solubility increases.

Answer 1

Answer;

The option A and D are correctly described above.

Because the cell membrane is composed of phospholipid, lipid soluble solutes will pass the cell membrane as lipid molecules can pass through easily and if the if the solute size decreases the permeability increases.

in D. as we know know if the solute is more soluble in lipid, it will be easy to pass through the cell membrane as lipid content in membrane facilitate the lipid molecules for permeabilization.