The transport of materials through a membrane with the help of carrier enzymes is called:
A)facilitated diffusion
B)diffusion
C)active transport
D)osmosis

Question

Quizplus · Accepted Answer

Facilitated diffusion involves the use of carrier enzymes to transport specific molecules across a membrane down their concentration gradient, without using energy. Active transport, on the other hand, uses energy to move molecules across a membrane against their concentration gradient. Osmosis is the diffusion of water molecules across a selectively permeable membrane. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, without the help of enzymes. Therefore, the correct choice is A - facilitated diffusion.

The Transport of Materials Through a Membrane with the Help