Q1. Approximately what percentage of the energy of glucose is transferred to storage in ATP as the result of the complete oxidation of glucose to CO and water in cellular respiration?

Q2. As a researcher, you discover a new disease afflicting human populations. Your research shows that, 1) disease is caused by a toxin released somewhere in the intestine, 2) that drugs obstructing cell division in addition to drugs obstructing gene expression in general seem to prevent the progression of the illness, but fail to bring patients back to normal health, 3) that an intestine and surrounding region do not contain any foreign or ‘non-native’ flora, and 4) antibiotics at first help restore health, but symptoms resume soon after patients finish taking them. Based on all these findings, what is the most possible explanation about the ultimate cause of the disease?