karrriee1088 karrriee1088

25-11-2017
Biology

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When can a cell transport a molecule across the cell membrane without expending energy?

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sithiraharisozxuq4 sithiraharisozxuq4

27-11-2017

When the concentration gradient of such molecules is high on the either the cytoplasmic side or the extracellular side of the cell. When the concentration gradient is high it flows freely through the cell membrane to the other side without expanding energy.

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