Lipid-soluble substances diffuse through channels in cell membranes of cells forming the capillary wall, whereas lipid-insoluble substances diffuse through most areas of the capillary cell membranes.

Question

Quizplus · Accepted Answer

Lipid-insoluble substances cannot pass through the lipid bilayer of cell membranes, and instead rely on various transport mechanisms such as active transport or facilitated diffusion. Lipid-soluble substances can diffuse through the lipid bilayer, but still require specific transport channels in order to cross membranes of capillary cells.

Lipid-Soluble Substances Diffuse Through Channels in Cell Membranes of Cells