How many water molecules are lost in the production of ATP?

I'm going to base my answer from one molecule of glucose using aerobic respiration: Glycolysis splits the glucose molecule into 2 molecules of pyruvate. * This releases no water Each of the next steps happens twice, once for each pyruvate. read more

To answer your question, you have 6 moles of H20 lost during this reaction. The number of molecules lost in these 6 moles can be calculated with Avogadro’s number: 6.02*10^23 molecules/mole. So, producing ATP in the presence of oxygen with one mole of glucose “loses” about 6*6.02*10^23 which comes out to about 3.61*10^24 molecules of H2O. read more

In glycolysis, 2 molecules of ATP are used to make 4 ATP molecules, one of the reactions removes 4 high-energy electrons and gives it to the electron carrier NAD+, making it NADH, and a glucose molecule (6 carbon atoms) is broken down into 2 pyruvic acid molecules (3 carbon atoms a piece. read more

Biology textbooks often state that 38 ATP molecules can be made per oxidised glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system). read more