Photosynthesis removes carbon dioxide from the

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Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses oxygen to release energy from food. Chemical Energy and Food For Questions 1–4, complete each statement by writing the correct word or words. 1. A calorie is a unit of energy . 2. The Calorie used on food labels is equal to 1000 calories. 3. A Calorie is also referred to as a kilocalorie 4. Cells use the energy stored in chemical bonds of foods to produce compounds that directly power the cell’s activities, such as ATP . . 130
Name Aaron Shirey Class Date 11/14/18 Overview of Cellular Respiration For Questions 5–10, complete each statement by writing the correct word or words. 5. The equation that summarizes cellular respiration, using chemical formulas, is 6O2 + C6H12O6 6CO2 + 6H2O + Energy 6. If cellular respiration took place in just one step, most of the engery would be lost in the form of light and heat . 7. Cellular respiration begins with a pathway called glycolyis which takes place in the cytoplasm of the cell. 8. At the end of glycolysis, about 90 percent of the chemical energy is locked in the bonds of the pyruvic acid molecule. 9. Cellular respiration continues in the mitochondria of the cell with the krebs cycle and electron transport chain. 10.

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