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_______ transport is when something passes through the cell membrane without any input of energy.

A. active
B. passive

2 Answers

5 votes
B.passive is correct
User Wouter Verhelst
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Answer:

Passive transport is the movement of substances across the membrane without the expenditure of cellular energy. In contrast, active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP).

Step-by-step explanation:

User Dynamikus
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