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Question

Active transport of ions by a cell requires

A
High temperature
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B
Low temperature
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C
Alkaline pH
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D
ATP
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Solution

The correct option is C ATP
  • Active transport can be defined as the movement of molecules and ions across a cell membrane from a region of lower concentration (of the molecules) to the region of higher concentration i.e, movement of molecules occurs against the concentration gradient.
  • This transport requires cellular or metabolic energy which is available in the form of ATP molecules produced within the cell.
  • So, the correct answer is 'ATP'.

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