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Question

Which gas in the atmosphere is essential for respiration?


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Solution

Role of oxygen in respiration:

  1. Oxygen is an important component in cellular respiration.
  2. In cellular respiration glucose and oxygen is utilized to produce energy in the form of ATP which is required for cellular metabolism.
  3. Oxygen acts as an electron acceptor in the electron transport chain and helps in ATP synthesis.
  4. Oxygen combines with protons to form a water molecule.

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