Which of these does require energy? - ProProfs
     

Which of these does require energy?

A. Active Transport
B. Passive Transport
C. Osmosis
D. Gravity


This question is part of

Diffusion and Osmosis

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2 Answers

John Adney

John Smith

John Smith

Answered on Sep 11, 2016

Active Transport
Active transport is the movement of molecules from an area of lower concentration to an area of higher concentration. Because this defies the law of diffusion, it takes the proteins on the membrane energy to transport molecules across.

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