4 stages in aerobic respiration

• What is the main respiratory substrate used by cells?

  Glucose
• What is aerobic respiration?

  Breaking down a substrate to produce ATP using oxygen
• What are the four stages of aerobic respiration?

  1. Glycolysis
  2. Link reaction
  3. Krebs cycle
  4. Oxidative phosphorylation
• Where does glycolysis occur?

  Cell cytoplasm
• Where does the Link reaction take place?

  Matrix of the mitochondria
• Where does the Krebs cycle occur?

  Matrix of the mitochondria
• Where does oxidative phosphorylation occur?

  Inner membrane of mitochondria
• What is the description of each stage of aerobic respiration?

  1. Glycolysis: Phosphorylation and splitting of glucose
  2. Link reaction: Decarboxylation and dehydrogenation of pyruvate
  3. Krebs cycle: Cyclical pathway with enzyme-controlled reactions
  4. Oxidative phosphorylation: Production of ATP through oxidation of hydrogen atoms
• Why is it important to know the exact locations of each stage of aerobic respiration?

  To accurately describe where each process occurs
• What is a common mistake regarding the Krebs cycle's location?

  Stating it occurs in the mitochondria instead of the matrix