When substances move across a plasma membrane and down concentration gradients, this is called
A) active transport.
B) exocytosis.
C) passive transport.
D) pinocytosis.

Name: When substances move across a plasma membrane and down concentration gradients, this is called A) active transport. B) exocytosis. C) passive transport. D) pinocytosis.
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Question

Quizplus · Accepted Answer

Passive transport is the movement of substances across a membrane down their concentration gradient without the use of energy by the cell.

When Substances Move Across a Plasma Membrane and Down Concentration