Suspect alcoholic liver disease when the aminotransfer-. ases are elevated and the aspartate aminotransferase. level is two to three times higher than the alanine ami-. notransferase level, especially when gamma-glutamyl. transferase levels are elevated. If medications or alcohol is a suspected cause of elevat-.
During the stage of photosynthesis referred to as the light-dependent reaction, 12 molecules of water begin the process of reacting with six molecules of carbon dioxide to produce one molecule of glucose, six molecules of oxygen and six molecules of water.
Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy. This energy is used to fuel growth and all of the normal cellular functions. Carbon dioxide and water are formed as by-products of respiration (Figure 4).hotosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen (Figure 2).