What is aerobic respiration?

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RRB JE Previous Paper 2 (Held On: 23 May 2019 Shift 1)
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  1. Respiration without molecular oxygen
  2. Respiration through skin
  3. Respiration in presence of oxygen
  4. Respiration through gills

Answer (Detailed Solution Below)

Option 3 : Respiration in presence of oxygen
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The correct answer is Respiration in the presence of oxygen.

Key Points

  • The respiration that takes place in the presence of oxygen is termed aerobic respiration.
  • The amount of energy released is more in aerobic respiration is quite large in comparison to anaerobic respiration.
  • 1 molecule of Glucose in aerobic respiration results in the gain of 36 or 38 molecules of ATP (adenosine triphosphate) in comparison to anaerobic respiration where the gain is of only 2 ATP molecules.
  • Aerobic respiration occurs in mitochondria, which is termed as the Powerhouse of the cell.
  • Aerobic respiration takes place in higher organisms that have higher energy requirements.
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