1. 9-2 The Krebs Cycle and Electron Transport Pg. 226

2. A. The Krebs Cycle 1. During the Krebs cycle pyruvic acid is broken down into carbon dioxide. 2. Pyruvic Acid enters mitochondria and is broken down to citric acid.

3. A. The Krebs Cycle 3. Citric acid is broken down and energy is released as ATP.

4. Make Connections! What happens to the carbon dioxide produced in the krebs cycle? Once, the carbon Dioxide leaves an organism what happens to it? Who benefits from the Carbon Dioxide in the air?

5. B. Electron Transport 1. The electron transport chain uses high energy electrons from the krebs cycle to convert ADP to ATP.

7. C. The Totals 1. Glycolysis produces 2 ATP and requires no oxygen. 2. Krebs Cycle and Electron Transport Chain produces 36 ATP and requires oxygen.

8. Pg 229

9. D. Comparing Photosynthesis and Cellular Respiration PhotosynthesisCellular Respiration Function Location Reactants Products Equation

10. https://www.youtube.com/watch? v=CNJYKgLRPJ0