AQA A2 Biology Unit 4 3.4.4 Respiration

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3.4.4 Respiration

Aerobic Respiration

Glycolysis

Takes place in the cytoplasm of the cell.
Glucose is first phosphorylated by 2 phosphate groups from 2 molecules of ATP to produce 2
molecules of glyceraldehyde-3-phosphate (GALP).
GALP is then oxidised and dephosphorylated into pyruvate.
In this process, the phosphate groups are transferred to…

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2FADH
6NADH
2ATP

Electron Transport Chain
Found on the cristae of the mitochondria which provide a large surface
area for this to take place.
The electron carriers are arranged in descending energy levels.
When electrons pass through the carriers, the energy released is used
to move hydrogen ions from the…

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