Sodium-potassium pumps, endocytosis, and exocytosis all involve active transport. Which of the following is a characteristic of active transport? (SC.912.L.14.3) *

Question

1 point
It involves facilitated diffusion.
It requires energy from the cell.
It relies on vesicles that often function as pumps.
It moves substances with a concentration gradient.

Answer 1

The characteristic of active transport is:

It requires energy from the cell.

Active transport involves the movement of molecules against their concentration gradient, which requires energy input, typically in the form of ATP.