Each of the Following Molecules Move Across Membranes by Simple

Question

Each of the following molecules move across membranes by simple diffusion except
A)oxygen.
B)fatty acids.
C)water.
D)glucose.
E)carbon dioxide.

Accepted Answer

Glucose transport across cell membranes typically requires facilitated diffusion through specific transport proteins, such as GLUT transporters, rather than simple diffusion. This is because glucose is a relatively large, polar molecule that cannot easily pass through the hydrophobic lipid bilayer of the cell membrane without assistance.