• Glucose is the main respiratory substrate used by cells
• Aerobic respiration is the process of breaking down a respiratory substrate in order to?produce ATP using oxygen
• The process of aerobic respiration using glucose can be split into four stages
• Each stage occurs at a particular location in a eukaryotic cell:
  • Glycolysis?takes place in the cell cytoplasm
  • The?Link reaction?takes place in the matrix of the mitochondria
  • The?Krebs cycle?takes place in the matrix of the mitochondria
  • Oxidative phosphorylation?occurs at the inner membrane of the mitochondria

Four Stages of Respiration Table