Cellular Respiration By Courtney Gates

Definition Cellular respiration is the process by which mitochondria break down food molecules to produce ATP Equation: C₆H₁₂O₆+6O₂→ 6CO₂+6H₂O

Stages Three stages of cellular respiration: 1. Glycolysis 2. Krebs Cycle 3. Electron Transport Chain

Glycolysis Glycolysis is a series of chemical reactions in the cytoplasm of a cell that break down glucose into two molecules of pyruvic acid and a three-carbon compound Two ATP are used Two ATP are produced and NADH carries electrons

Oxidation of Pyruvate Before the Krebs cycle pyruvic acid undergoes a series of chemical reactions It gives off CO₂ It combines with coenzyme A to form acetyl-CoA

Krebs Cycle Is also known as the Citric Acid Cycle Is a series of chemical reactions and for every turn of the cycle two ATP’s, two CO₂ molecules, and NADH and FADH₂ are produced

Electron Transport Chain NADH and FADH₂ give up electrons that pass through a series of chemical reactions Oxygen is the final electron acceptor which ends up producing water Produces 32 ATP

ATP Produced 4 ATP molecules are produced from the Krebs Cycle (2 from each pyruvate) 32 ATP molecules are produced from the Electron Transport Chain

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