Prevent Drunkenness~ Amethyst comes from the Greek amethystos meaning not drunken.. In Greek myth, amethyst was a pure young girl who refused to get drunk, thus incurring the wrath of Dionysus, the god of joviality. To protect her from his wrath, the goddess Diana turned her into quartz.
cellular respiration definition The chemical process that generates most of the energy in the cell, supplying molecules needed to make the metabolic reactions (see metabolism) of an organism run. Note: The main carrier of energy in metabolism is the molecule ATP.
1. The presence of oxygen in the cells determines which type of cellular respiration will work, and in this case, aerobic respiration uses oxygen to produce energy in the form of ATP, with water and carbon dioxide as by-products. If oxygen is absent, the cells still produce energy, this time using anaerobic respiration.