Question

some solutes are able to pass directly through the lipid bilayer of a plasma membrane, whereas other solutes require a transport protein or other mechanism to cross between selective permeability. which of the following molecules can cross the lipid bilayer of a membrane directly, without a transport protein or other mechanism? select all that apply. view available hint(s) sucrose ions lipids oxygen carbon dioxide proteins water submit part c - facilitated diffusion via channels and carrier proteins the majority of solutes that diffuse across the plasma membrane cannot move directly through the lipid bilayer. the passive movement of such solutes (down their concentration) diffusion through a transport protein in the plasma membrane is called facilitated diffusion outside cell channel protein inside cell carrier

Explanation:

Small, non - polar molecules can pass directly through the lipid bilayer. Lipids are non - polar and can cross easily. Oxygen and carbon dioxide are small non - polar molecules and can diffuse across. Water is small and can cross to a limited extent through simple diffusion. Sucrose is a large polar molecule, ions are charged, and proteins are large macromolecules, all of which cannot cross directly.

Answer:

lipids, oxygen, carbon dioxide, water