Question

Active transport moves molecules

a. Into the cytoplasm.
b. In the same direction as diffusion moves them.
c. Toward the region of lower concentration of the molecule
d. In a direction opposite to the one in which diffusion moves them.
e. Toward the region with a higher pH.

Answer 1

In active transport, molecules move from an area of low concentration to an area of high concentration, which is opposite to diffusion. This process requires energy in the form of ATP.

Step-by-step explanation:

In active transport, molecules move from an area of low concentration to an area of high concentration, which is opposite to diffusion. This process requires energy in the form of adenosine triphosphate (ATP).

For example, sodium ions are actively transported out of erythrocytes (red blood cells) while potassium ions are actively transported into the cells. This movement of ions against their concentration gradient helps maintain the proper balance of ions inside and outside the cell.

Therefore, the correct option would be d. In a direction opposite to the one in which diffusion moves them.