Chapters 3 and 4

ATP and Energy Release & Chemistry of Respiration

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1. is a high energy compound able to release and energy when it is required for cellular processes.

2. ATP is regenerated from and inorganic phosphate by the process of using energy released during respiration.

3. involves the removal of hydrogen from a substrate and the release of energy; involves the addition of hydrogen to a substrate and the consumption of energy.

4. is a biochemical pathway common to aerobic and respiration. It involves the breakdown of glucose to acid in the cytoplasm of a cell with the net gain of two ATP.

5. In the presence of , aerobic respiration occurs in the central of mitochondria where the respiratory substrate is oxidised during cycle and is released.

6. This hydrogen becomes temporarily bound to , a coenzyme which transfers it to the system on the cristae of where energy is released and used to form ATP.

7. As a result of respiration, one molecule of glucose yields 38 ATP. and CO2 are the final metabolic products.

8. In the absence of oxygen, anaerobic respiration occurs and one molecule of glucose yields two ATP. The final metabolic products are and . In plant cells and acid in animal cells (and some bacteria).