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🔬 Biology  ·  Breathing and Exchange of Gases  ·  NEET

The gas taken into the body during breathing is:

  • A oxygen
  • B carbon dioxide
  • C nitrogen
  • D hydrogen

Correct answer: A. oxygen

Explanation: We breathe in oxygen for cellular respiration.

Concept context

The mechanics of breathing, lung volumes, gas transport in blood, the Bohr effect, and respiratory regulation.

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