glycolysis
It is during cellular respirations. Specfifcallt glycolisis, which produces a net two ATP. It starts off with PGAL, and then ends with 2 pyruvate, and two net ATP.
Glycolysis
Glycolisis
magic.
NADH. In oxidative phosphorylation, for every NADH, around 2.5 ATP molecules are made, and for every FADH2 about 1.5 ATP molecules are made.
Glycolysis produce 2 Pyruvate 2 NADH and 2 ATP. These are net products.
2Actually it produces four. But two are used in the mechanism
Aerobic respiration produces 36 ATP from one glucose molecules. Anaerobic respiration produces only 2. Two glucose molecules are produced during glycolysis. In addition to producing ATP from ADP, glycolysis also converts NAD+ to NADH. If no oxygen is available, more energy needs to be produced from glycolysis. However, for glycolysis to occur, NAD+ must be regenerated from NADH. Thus, in a process known as anaerobic fermentation, NAD+ is regenerated from NADH. Fermentation doe snot fully oxydize glucose. After glycolysis, the glucose molecule has been converted into two molecules of pyruvate. Fermentation uses pyruvate to convert NAD+ back to NADH so it can be used for another round of glycolysis. If oxygen is present, the two pyruvate molecules from glycolysis can be fully oxydized in a process known as aerobic respiration. This process consists of the citric acid cycle and the electron transport chain. The process is beyond the scope of this post, but aerobic respiration basically produces more NADH and FADH2 from pyruvate and uses the NADH/FADH2 molecules to oxydize O2 to H2O. The Krebs cycle produces 2 ATP and the electron transport chain produces 32 ATP. Thus, aerobic respiration is a far more efficient means of energy production.
Glycolysis
Water is not a product of glycolysis. Glycolysis produces 2 molecules of pyruvate, 2 molecules of NADH, and also 2 molecules of ATP.
2 ATP + 2 NADH + 2 H2O + 2 pyruvate
Glycolysis produces 2 pyruvate, 2 NADH, and 2 ATP [net]
magic.
NADH and Pyruvate
Generally when asked what is produced in glycolysis, they are refering to the 2 ATP molecules. However, other molecules and ions are also produced. Glucose along with 2 NAD+ , 2 ADP , and 2 Phospate is turned into 2 NADH, 2 H+, 2 ATP + 2 H2O ... in case you were wondering this happens the same way in aerobic and anaerobic glycolysis.
Glycolysis.
In my textbook it says that 1 molecule of ATP and 3 molecules of NADH are made from 1 molecule of pyruvate, via the citric acid cycle. However, since the question is asking for 1 molecule of GLUCOSE, the answer would be 2 ATP and 6 NADH since the oxidation of glucose produces TWO molecules of pyruvate, the amount of ATP and NADH would have to be doubled. I actually have this EXACT question on my exam... hmmm... do I know you by chance? o__O
Glycolysis
In glycolysis of cellular respiration, NADH produces 2ATP because one ATP is used to transport a molecule of NADH into the mitochondria and continue with aerobic respiration. However, in pyruvate decarboxylation and the Krebs cycle, each NADH yields 3ATPs. FADH2 yields 2 ATPs.
Many say that is 36 or 38 ATP but in reality it is actually 34 ATP.