In the electron transport chain, electrons move through the cytochromes in the following order: b566, b562, c1, c, a, and a3 (see Figure 16-19). The various cytochromes have slightly different heme groups and axial ligands, which generate different environments for the Fe ion (Figure 16-21).
On average, a woman has her period from three to seven days and the average woman menstruates from age 13 until age 51. That means the average woman endures some 456 total periods over 38 years, or roughly 2,280 days with her period -- 6.25 years of her life. Midol. You can only take up to six caplets a day, and cramps usually persist for two days. There are 40 caplets per package of Midol, which costs $8.99 at Walgreens.
The average menstrual cycle. On average, a woman's menstrual cycle lasts 28 days, but cycles can vary from 24 to 35 days. After puberty, most women develop a regular menstrual cycle, with around the same length of time between periods. Menstrual bleeding usually lasts two to seven days, with the average being five days.here is always a different amount of time between periods and always last for a different amount of time. Sometimes i can be on my period for 2 to 3 weeks others 1 week, they are never 5 days or less.