Which process involves the movement of molecules or atoms down a concentration gradient across plasma membranes?
A) active transport
B) passive transport
C) exocytosis
D) endocytosis

Question

Quizplus · Accepted Answer

Passive transport involves the movement of molecules or ions down their concentration gradient, without the use of energy. This includes processes like diffusion, osmosis, and facilitated diffusion. Active transport, on the other hand, moves molecules or ions against their concentration gradient and requires energy in the form of ATP. Exocytosis and endocytosis involve the movement of larger substances into or out of the cell, and also require energy.

Which Process Involves the Movement of Molecules or Atoms Down