Question

select all that apply
the rate of diffusion of a substance across the plasma membrane depends on which of the following?
how easily the substance can cross the membrane
the concentration of the substance outside the cell
the availability of atp within the cell
the amount of cholesterol in the membrane
the concentration of the substance inside the cell

Explanation:

Diffusion is a passive process not requiring ATP. The rate depends on the substance's membrane - crossing ability and its concentration gradient (inside and outside the cell). Cholesterol affects membrane fluidity and can influence diffusion rate.

Answer:

• How easily the substance can cross the membrane
• The concentration of the substance outside the cell
• The amount of cholesterol in the membrane
• The concentration of the substance inside the cell