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.
The organelles where these processes occur have complex internal membrane systems that are essential to the processes. 3. These processes rely on existing molecules in cells to carry out the energy conversion reactions: electron holders (NAD + , NADP + , FAD), ADP and ATP, miscellaneous sugars, etc. 4. Photosynthesis and respiration are essentially the reverse of each other.