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The breakdown of pyruvate to give CO2, water and energy takes place inChloroplastNucleusMitochondriaCytoplasm

Question

The breakdown of pyruvate to give CO2, water and energy takes place in

  • Chloroplast
  • Nucleus
  • Mitochondria
  • Cytoplasm
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Solution

The breakdown of pyruvate to give CO2, water and energy takes place in the Mitochondria. This process is known as cellular respiration. Here are the steps:

  1. Glycolysis: This process occurs in the cytoplasm where glucose is broken down into two molecules of pyruvate. This process produces a small amount of energy.

  2. Transition Reaction: The pyruvate is transported into the mitochondria and is further broken down. This process also releases a molecule of CO2.

  3. Krebs Cycle (Citric Acid Cycle): This cycle occurs in the mitochondria. Here, the products from the transition reaction are further broken down to produce CO2. This process also generates energy.

  4. Electron Transport Chain: This is the final step of cellular respiration that occurs in the mitochondria. The products from the Krebs cycle are used to produce a large amount of energy. Water is also produced in this step as a byproduct.

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