Question

The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?

A. simple osmosis

B. active transport

C. simple diffusion

D. facilitated diffusion and please give a reason why you chose this answer

Answer 1

b

Step-by-step explanation:

because active transport obey the concentration gradient..

Answer 2

B. active transport

Step-by-step explanation: