Respiration 1.2- Aerobic Respiration

• Describe what happens in Glycolysis (STAGE 1)

  1. Hydrolysis of 2 ATP molecules into ADP + Pi
  2. Glucose is phosphorylated by addition of Pi into Glucose Phosphate
  3. Glucose Phosphate breaks down into 2x Triosephosphate
  4. The 2 TP molecules are oxidised into pyruvate
  5. 2x net gain ATP and 2x net gain NADPH are produced
• Describe what happens in the Link Reaction (STAGE 2)

  1. Pyruvate is oxidised into acetate, CO2 is released and NAD is reduced
  2. Acetate reacts w/ coenzyme A (CoA) to make acetyl COA
  3. This happens twice because there's 2 molecules of pyruvate
• What happens in the Kreb's Cycle? (STAGE 3)

  • What is the Point?: Produce as many reduced coenzymes as possible
  • What are the products: 1 ATP, 2 CO2, 3 NADH, 1 FADH2
  • How many times does it happen?: Twice
• What would happen to the Kreb's Cycle if there was an Inhibitor?

  • Cycle can't happen
  • Reduced coenzymes aren't produced
  • No reduced coenzymes can be oxidised to produce Protons and Electrons
  • Organisms die