Question

What is the natural tendency of molecules to spread from an area of high concentration to an area of low concentration?

A.
Active transport

B.
Vesicle

C.
Passive transport

D.
Diffusion

Answer 1

This concept is known as diffusion. Diffusion is a passive process, as it requires no energy for it to occur. In a cell, it is used as a method of passive transport since it requires no energy.

Step-by-step explanation:

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