What are the net and gross yields of ATP in glycolysis?
Gross yield of ATP during glycolysis: 4
Net 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).
In aerobic respiration, one molecule of glucose yields 38 ATP molecules, eight produced during glycolysis, six from the link reaction and 24 from the Krebs cycle. The net gain is 36 ATP, as two of the ATP molecules produced from glycolysis are used up in the re-oxidation of the hydrogen carrier molecule NAD. Therefore; There are 38 ATP molecules produced but net gain is 36 ATP
If a biocide were to block ATP production other than from glycolysis what would be the net ATP output?
If the cell uses 2 ATP molecules at the of Glycolysis how does it end up wth a net gain of 2 ATP molecule?
First you have to know that respiration happens in 3 steps: glycolysis, Krebs cycle, and oxidative phosphorylation. Glycolysis, through substrate-level phosphorylation, yields 4 ATP, but it uses up 2 ATP, giving a "profit" of 2 ATP. The Krebs cycle also yields 2 ATP through substrate-level phosphorylation. Oxidative phosphorylation occurs through the electron transport chain. This process yields about 34 ATP. This gives us a total of about 38. The total CAN be 36 depending on…
If the cell uses 2 ATP molecules at the begging of glycolysis how does it end up with a net gain of ATP molecules?
Glycolysis, as the name implies, is the lysing or cutting of glucose. To get this reaction started requires an input of energy, much the way starting a fire requires a match. The heat from the burning is greater that that of the match used to start it. To start the reaction requires 2 ATP molecules. The breaking of the bonds in glycolysis yields 4 ATP molecules. Answer to your question is 4 ATP output minus…