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KIN 3600
Energy transformation - ATP
| Question | Answer |
|---|---|
| Optimum pH | The pH at which the catalytic activity of an enzyme is THE HIGHEST |
| 2 catabolic pathways | -aerobic energy transformation -anaerobic energy transformation |
| ^ brain activity | ^ Energy transformation |
| Energy substrates | -ATP – Adenosine Triphosphate (Stored in the cells) -CP – Creatine Phosphate (stored in the cells) |
| ADP + Pi | ATP |
| ATP characteristics | -ATP is the only type of energy that may be directly utilized by the cells. -ATP cannot be transported from cell to cell, thus each cell must be self-reliant -Cells have a very small amount of stored ATP |
| How do you resynthesize ATP | 7.3 kcal of energy |
| Why doesn’t body store ATP? | Very heavy and dense fuel -Human body turns over its own weight in ATP per day. |
| Substrates | glycogen & glucose |
| Carbohydrates are the only energy substrates | that may be oxidized both aerobically and anaerobically |
| stored glycogen | stored as sugar granules in the cytoplasm |
| Energy investment phase | -You need energy to yield energy -Used 2 ATP to get reaction to happen |
| End product of anaerobic glycogen | Lactic acid |
| Hexokinase | Control the rate of glucose utilization -ATP -> ADP - Make glycogen |
| Phosphorylase | Muscle glycogen used for T.B |
| Phosphofructokinase (main enzyme) | Rate limiting enzyme |
| No NAD | All reactions will stop |
| How does NAD get rid of hydrogen ? | When pyruvate turns lactic acid it gives away its hydrogen |
Created by:
rmart11
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