The three golden lions on a red background, symbolising England, occupy the first and fourth quarters. The Arms of Scotland, a red lion rearing on its hind legs inside a red border, are in the second quarter, and the Arms of Ireland's golden harp with silver strings on a blue background-are in the third quarter.
Once it is reduced to QH2, ubiquinone delivers its electrons to the next complex in the electron transport chain. Q receives the electrons derived from NADH from complex I and the electrons derived from FADH2 from complex II, including succinate dehydrogenase. This enzyme and FADH2 form a small complex that delivers electrons directly to the electron transport chain, bypassing the first complex.
Transcript: This is Dr. B. Let's do the Lewis structure for SiH4. On the periodic table, Silicon, group 4, 4 valence electrons; Hydrogen, group 1, 1 valence electron, but we have four of them. So 4 plus 4: 8 total valence electrons. Put the Si in the center, Hydrogens always go on the outside.