Tetrahydrocannabinol - THC. Tetrahydrocannabinol (THC) is the active chemical in cannabis and is one of the oldest hallucinogenic drugs known. There is evidence that cannabis extracts were used by the Chinese as a herbal remedy since the first century AD.
This potential is then used to drive ATP synthaseand produce ATP from ADP and a phosphate group. Biology textbooks often state that 38 ATP molecules can bemade per oxidised glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about34 from the electron transport system).
Both reactions are accomplished in organelles; chloroplasts are the sites of photosynthesis, and cellular respiration happens mainly in the mitochondria. Only photosynthetic organisms can make glucose, but all organisms must be able to use that energy. This energy usually comes in the form of ATP, or adenosine triphosphate. Cellular respiration produces ATP. The glucose is burned to produce the ATP. Cellular respiration consists of four steps.