oxidative phosphorylation Flashcards
1
Q
what is used from the krebs cycle in oxidative phosphorylation
A
NADH
FADH
2
Q
why does inhibition of reaction in krebs decrease uptake of oxygen
A
less/ no NADH AND FADH produced
oxygen terminal electron acceptor
3
Q
why is FADH and NADH from krebs cycle important in oxidative phosphorylation
A
both FADH and NADH are oxidised into NAD and FAD releasing electrons for the electron transfer chain and hydrogen ions
4
Q
describe and explain the process of oxidative phosphyrilation
A
- NADH and FADH from krebs cycle are oxidised releasing electrons and hydrogen ions
- electrons move down the electron transferchain.
- electrons moving down electrons transferchain pump H+ ions from mitochondrial matrix into the intermembrane space.
- higher conc of H+ ions in intermbrane space. electrochemical gradient established.
- H+ ions move along electrochemical gradeint and diffuse down ATP SYNTHASE into matrix via chemosmosis
- chemosmosis down ATP SYNTHASE drives the conversion of ADP + Pi to ATP
- hydrogen ions join with elctrons and oxygen forming water
- oxygen is the final electron acceptor
5
Q
what is the benefit of oxidative phosphyrilation
A
produces LOTS of ATP
6
Q
where does oxidative phosphyrilation occour
A
christie
7
Q
what are either sides of bilayer of christie
A
matrix
intermebrane space
