Biology, 02.03.2020 22:54 tddreviews

Which transport process requires a cell to expend energy? A. Moving a solute either up or down its concentration gradient. B. Moving a solute down its concentration gradient. C. Moving a solute up its concentration gradient. D. No transport processes require energy.

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Which transport process requires a cell to expend energy? A. Moving a solute either up or down its c...

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