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Cell Respiration - Luis - Coggle Diagram
Cell Respiration - Luis
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Glycolysis
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Glucose is phosphorylated through the use of 2 ATP, making it unstable.
The phosphorylated molecule is broken down into 2 3C sugars, called G3P.
The 2 G3P ---> pyruvate (3C). 2 NAD+ are reduced forming NADH. 4 ATPs are formed from 4 ADPs. The phosphate groups are used to re phosphorylate ADP to form ATP.
2 NADH are produced, and the net gain of ATP is 2.
Oxygen present = pyruvate transported to mitochondria. No oxygen = pyruvate is converted into lactic acid.
Link reaction
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Pyruvate is decarboxylated, as CO2 and forms an acetyl group.
The acetyl group is then oxidized, NAD+ is reduced forming NADH.
Acetyl group combines with coenzyme A, which enters the Krebs cycle.
It produces 2 molecules of acetyl CoA (2C), 2 CO2, and 2 NADH.
The Krebs cycle
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Citrate's oxidized and loses 1C as CO2. (5C compound). NAD+ is reduced, forming NADH.
5C compound's oxidized losing 1C as CO2. Again, NAD+ is reduced, forming NADH.
As a series of reactions occur, the 4C compound results in the formation of 4C compound oxaloacetate. As this happens, NADH, FADH2, and ATP are produced (one of each).
Products for each glucose molecule: 2 ATPs, 6 NADH, 2 FADH2, and 4 CO2.
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