Multiple choice

The active transport of solute in the cell is characterized by

  1. its uptake along the concentration gradient utilizing energy

  2. requirement of a carrier to support transport along the concentration gradient

  3. chemical modification of the solute during its uptake

  4. its uptake against the concentration gradient
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D Correct answer
Explanation

Active transport is defined as the movement of molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration, meaning it occurs against the concentration gradient and requires cellular energy.

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