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KIN 3600

Energy transformation - ATP

QuestionAnswer
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