Electron Transport Chain When NADH delivers high energy electrons to the first carrier of the electron transport chain, enough energy is captured by the time the electrons are received by O2 to permit the production of three ATP molecules.
67 days of darkness. Even though residents of Barrow, the northernmost town in Alaska, won't see the sun for 67 days come winter, they enjoy the midnight sun all summer-over 80 days of uninterrupted daylight.
June 21 is the longest day of the year, with 19 hours of daylight in Anchorage, 22 in Fairbanks, and 18 in Southeast. But from early May through September, days are considerably longer than at lower latitudes. Alaska's sky is light nearly all night long from late May to late July (unless you're out and about at 3am).