Question

Movement of a glucose molecule through a cell membrane requires the following transport method:

A. Facilitated diffusion
B. Simple diffusion
C. Receptor-mediated endocytosis
D. Transcytosis

Answer 1

Glucose molecules move through the cell membrane using facilitated diffusion, which involves carrier proteins and does not require energy.

Step-by-step explanation:

The movement of a glucose molecule through a cell membrane requires the transport method of Facilitated Diffusion. This process involves the movement of molecules from an area of higher concentration to an area of lower concentration through specific protein channels in the cell membrane. Unlike simple diffusion, facilitated diffusion requires these specific membrane receptors or channels for movement, but it does not require energy. Glucose utilizes carrier proteins known as glucose transporters to pass through the cell membrane using facilitated diffusion.