The Proton-Motive Force

Study with term answer with definition.

Explain the sequence of events that occur during ATP synthesis.

1. F0 component provides a channel for protons

2. protons transferred from a to c subunits

3. then proton is returned to mitochondrial matrix when c subunit faces a subunit

where is ATP generated?

3 beta subunits in T form converts ADP→ATP

t→O = atp release.

Explain uncoupling with regard to mitochondria.

Carry protons across inner mitochondrial membrane. NO atp synthesis occurs, proton gradient never forms.

Explain how the rate of oxidative phosphorylation is regulated.

Electrons dont flow unless ADP is available. Inhibition of electron transport chain and Acceptor control by energy charge.

What poisions affect oxidative phophorylation?

Cyanide is a severe blocker