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Question: Answered & Verified by Expert
Aerobic respiration is composed of two crucial events. Choose the correct option regarding the site of these events.
BiologyRespiration in PlantsNEET
Options:
  • A Both of the events take place in the matrix of the mitochondria.
  • B Both of the events take place in the inner membrane of the mitochondria.
  • C One event takes place in the matrix of the mitochondria and the other in the inner membrane of the mitochondria.
  • D Neither of the events take place in the mitochondria.
Solution:
2473 Upvotes Verified Answer
The correct answer is: One event takes place in the matrix of the mitochondria and the other in the inner membrane of the mitochondria.
For aerobic respiration to take place within the mitochondria, the final product of glycolysis, pyruvate is transported from the cytoplasm into the mitochondria. The crucial events in aerobic respiration are:
• The complete oxidation of pyruvate by the stepwise removal of all the hydrogen atoms, leaving three molecules of CO2.
• The passing on of the electrons removed as part of the hydrogen atoms to molecular O2 with simultaneous synthesis of ATP.
The first process takes place in the matrix of the mitochondria while the second process is located on the inner membrane of the mitochondria.

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