BIOL 241 Lecture Notes - Lecture 14: Eze, Electron Acceptor, Electrochemical Gradient

• School: University of Calgary
• Department: Biology
• Course: BIOL 241
• Professor: Robert Allan Edwards, Kenneth Kai- Sing Ng, Mary Reid, William Huddleston, Peter F.Dunfield

Document Summary

High energy electrons from glucose make their way through the pathways of glycolysis, the bridge. Rea(cid:272)tio(cid:374), kre(cid:271)"s (cid:272)(cid:455)(cid:272)le, a(cid:374)d the ele(cid:272)tro(cid:374) tra(cid:374)sport (cid:272)hai(cid:374) to o(cid:454)(cid:455)ge(cid:374). I(cid:374) the e(cid:374)d, the fi(cid:374)al produ(cid:272)ts of aerobic respiration (water molecules). As the electrons travel, they go down in free energy. Small a(cid:373)ou(cid:374)ts of e(cid:374)erg(cid:455) is (cid:272)aptured i(cid:374) gl(cid:455)(cid:272)ol(cid:455)sis as atp a(cid:374)d i(cid:374) the kre(cid:271)"s (cid:272)(cid:455)(cid:272)le it is (cid:271)(cid:455) gtp. Most of the energy is stored in an electrochemical gradient across the mitochondrial membrane (cell membrane of prokaryotes) Gravity pulls the water down to the bottom of the dam where the hydrogen ions outside of the membrane are stored. Electrical repulsions use concentration differences push the hydrogen ions from the outside toward the gradient and use the freeable energy stored in the gradient to make atp . Atp synthase which makes atp is a nanoturbine. As hydrogen ions move through the atp synthase protein molecule, the base of the protein turns relative to the head.