respiration

• 4 stages of respiration are glycolysis, oxidative decarboxylation, Krebs cycle and oxidative phosphorylation
• glycolysis takes place in the cytoplasm and the other three processes take place in the matrix
• glycolysis involves converting glucose into 2 pyruvate. It creates a net of 2ATP and 2NADH
• oxidative decarboxylation is converting pyruvate into acetyl group + coenzyme A. It creates 1 NADH and a carbon dioxide
• Krebs cycle is the cycle of reactions that produces 3NADH, 1FADH, 1ATP and 2 carbon dioxide
• oxidative phosphorylation is the process of transferring electrons from NADH and FADH down the electron transport chain creating energy for hydrogen to enter the the inter membrane space and leading to the synthesis of ATP. water is a by product
• FAD accepts two hydrogen and NAD accepts one hydrogen
• FADH is oxidised further down the electron transport chain whereas NADH is oxidised at the start