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Diffusion, movement of particles across a membrane is driven by differences in

A. concentration.
B. shape.
C. force.
D. size.

1 Answer

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A concentration.

In cells, there are two types of transportation of needed organic compounds. The active and passive transport.
The active transport requires energy or ATP while passive doesn't. Further, diffusion, a passive transport transfers compounds from higher to lower concentrations.
User Syed Shibli
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