1. Cellular Respiration
By Courtney Gates

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

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

4. 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

5. 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

6. 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

7. 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

8. 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

9. How much have you learned?
Time to find out what you have learned about cellular respiration
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