lecture 14 part 4 Flashcards
how do NADH and FADH2 contribute to ETC
donate their e-
e- carrier proteins making up ETC exist how
as multi-proteins complexes (I,II,III, IV)
what do the carriers in ETC alternate between
reduced and oxidized states as they accept and donate e- from/to surroudning proteins
what causes e- to drop/ release enegery through ETC
as they go through EYC and are finally passed to O2, forming H2O
electrons are passed through what
a anumbe rof protonss including cytochromes (Cyt) to O2 (the final e- receptor)
ETC is what type of process
exergonic process energy rleased themodynamically favorable
what do cytochromes have
heme groups that carry e-
what do cytochromes bbind to
does not bind all oxygen, instead bind electron then give it up
what is in middle of cytochrome
iron in middle and will toggle between Fe (III) and Fe (II) because electron acception/donation
what does NADH donate to complex I
its 2e-
what does FADH2 donate to complex II
its 2e-
where do complex I and complex II donate their elctrons to
complex III
where does complex III donate its e- to
complex IV
in complex IV what happens to O2
O2 receives 2e- and reacts with H+ producing 2H2O
what is the final receptor of ETC, which is important to what
O2, THIS is why we need oxygen to survive