Which of the following is NOT an example of active transport?

Question

a
sodium potassium pump
b
facilitated diffusion
c
exocytosis
d
endocytosis

Answer 1

The option that is NOT an example of active transport is:

b. facilitated diffusion

Facilitated diffusion is a passive transport process that does not require energy, as it relies on the concentration gradient to move substances across the cell membrane. In contrast, the sodium-potassium pump, exocytosis, and endocytosis are all forms of active transport that require energy to move substances against their concentration gradients.