For further information, see PostâWorld War II baby boom. Baby boomers are the demographic group born during the postâWorld War II baby boom, approximately between the years 1946 and 1964. This includes people who are between 53 and 71 years old in 2017, according to the U.S. Census Bureau.
ATP transports chemical energy within cells for metabolism. It is one of the end products of photophosphorylation, cellular respiration, and fermentation and used by enzymes and structural proteins in many cellular processes, including biosynthetic reactions, motility, and cell division.TP is therefore continuously recycled in organisms: the human body, which on average contains only 250 grams (8.8 oz) of ATP, turns over its own body weight equivalent in ATP each day.
But how much ATP do we need? If our own cells didnât replace ATP constantly through cellular respiration, we would use up nearly our entire body weight in ATP in one day. Cellular respiration takes place in three steps: glycolysis, the citric acid cycle and oxidative phosphorylation. Enzymes Enzymes are proteins that catalyze, or affect the rate, of chemical reactions without themselves being altered in the process.