Na-pump is type of

[A] Phospholipid
[B] Co-enzyme
[C] Co-factor
[D] Enzyme


  1. Na+-K+-ATPase
  2. Glycoprotein
  3. 2 α and 2 β chains.
  4. Its activity depends on presence of Na+ and K+ and requires ATP and Mg++ ions as cofactor.
  5. Transport three Na+ ions outside and simultaneously two K+ ions inside across the cell membrane

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