Respiration

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1. Summarise the Link Reaction

  • Acetyl coenzyme A + NAD + hydrogen = pyruvate + hydrgoen + carbon dioxide
  • Pyruvate + NAD + coenyzme A = acetyl coenzyme A + NADH + Carbon dioxide
  • Pyruvate + acetyl coenzyme A + NADH = Hydrogen + coenzyme A + NAD
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2. Where does the Krebs Cycle take place?

  • Cytoplasm
  • Mitochondrial Matrix
  • Inner Mitochondrial Membrane

3. Where does the Electron Transport Chain take place?

  • Mitcohondrial Matrix
  • Inner Mitochondrial Membrane
  • Cytoplasm

4. What happens to the Hydrogen released from the Krebs Cycle?

  • It is reused in the next Krebs Cycle
  • it is used to reduce NAD and FAD, which diffuse to the inner mitochondrial membrane for the electron transport chain
  • it diffuses out of the mitochondria by lipid diffusion, into the tissue fluid and into the blood where it is carried to the lungs and removed from the body

5. Where does glycolysis take place?

  • Mitochondrial Matrix
  • Cytoplasm
  • Inner Mitochondrial Membrane

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