In cellular respiration, the total number of ATP glucose yields is between 36 (eukaryotes using G3P shuttle) and 38 (prokaryotes and eukaryotes using malate shuttle), it may vary though.
In prokaryotes, the breakdown of one molecule of glucose through glycolysis produces a net yield of 2 ATP molecules.
2
When you split a disaccharide, such as sucrose or lactose, you will gain two monosaccharides as products. For example, splitting sucrose will yield glucose and fructose, while splitting lactose will yield glucose and galactose.
When glucose is metabolized, it yields a net of 30-32 ATP molecules through glycolysis and oxidative phosphorylation. In contrast, glycogen, which is a polymer of glucose, can yield approximately 33-36 ATP molecules due to the fact that its breakdown bypasses one ATP investment step in glycolysis. This difference arises because glycogen is converted to glucose-1-phosphate, which is then converted to glucose-6-phosphate, allowing for a more efficient ATP production. Overall, glycogen metabolism provides a higher ATP yield compared to free glucose.
oxidation of glucose, is the breakdown of glucose in ATP through four main process 1) glycolysis 2) preparation of pyruvic acid 3) citric acid cycle and 4) oxidative phosphorylation
No, insulin stimulates the liver to produce glycogen from glucose. Glucagon mobilizes liver glycogen to yield glucose.
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Lactose and Glucose
2
2
In prokaryotes, the breakdown of one molecule of glucose through glycolysis produces a net yield of 2 ATP molecules.
2
lactose
Aerobic respiration
Gross yield of ATP during glycolysis: 4Net yield of ATP during glycolysis: 2 (anaerobic glycolysis of a glucose molecule took 2 ATP to accomplish so subtract 2 ATP from your gross yield of 4...therefore it's 2 for net yield).Kreb cycle: produces a total of 2ATP (one each time it happens and it happens twice).
It means that when one molecule of glucose is completely broken down by the process of aerobic cellular respiration, 38 molecules of ATP are produced.
Sucrose is broken down into glucose and fructose by the enzyme sucrase.