Energetics 2 Flashcards
What is the name of the enzyme that catalyses the reaction that synthesises creatine phosphate from ATP and creatine
Creatine kinase, creatine phosphokinase or phosphocreatine kinase.
Approximately how long can the phosphocreatine system provide energy for?
2-12 seconds
Approximately how long does it take for phosphocreatine stores to be resynthesized?
2-5 minutes
Anaerobic glycolysis
The break down of glucose into two pyruvate groups, uses 2 ATP to produce 4ATP, net yield of 2ATP. At no point do you need oxygen, can all take place anaerobically.
What if oxygen isn’t present in glycolysis
NAD will transport hydrogen to pyruvate creating lactic acid.
Glucose enters the cell via ………. with the help of a hormone called ……..
facilitated diffusion, insulin
Glucose undergoes glycolysis in the ……. , resulting in …… as an end product.
cytoplasm, pyruvate
In the absence of oxygen …… is reduced to form ……..
pyruvate, lactic acid
Buffer that neutralizes acid within the body. ?
Bicarbonate
3 steps of glycolysis
- Glucose into blood. (from the breakdown glycogen into the liver)
- Get glucose from the blood into the cells.
- break down glucose into usable chemicals.
Glycolysis summary
Takes place in cytoplasm.
The catabolism of a 6-carbon glucose molecule into 2 3-carbon glucose molecules, creating, 4 ATP (net gain of 2) 2 NADH, Pyruvate
ATP can be synthesised
anaerobically by the glycolytic system
What is the name of the molecule that stores chemical energy in the human body?
ATP Adenine Triphosphate
What synthesises ATP
ATP synthase
What is the name of the enzyme that hydrolyses ATP?
ATPase
