Terminal Respiration Flashcards
Mitochondria is the only place that ___ can occur
Oxidative phosphorylation
What is required to be in mitochondrial matrix for terminal respiration
NADH and FADH2 (formed there by citric acid cycle and beta oxidation of fatty acids)
Glycerol phosphate shuttle
Dihydroxy acetone phosphate is converted into glycerol 3 phosphate so that G3P can cross the mitochondrial membrane and pass electrons from NADH to FADH2
What cannot cross the membrane of mitochondria
NADH
What creates more atp FADH2 or NADH
NADH
What do the different complexes involved in electron transport chain do
Link the passing of the electrons from inside of the mitochondria to the inter membrane space
Complex 1 of electron transport chain
Oxidises NADH
Complex II
Oxidises FADH2
Complex III
Takes electrons from ubiquinol and passes to cytochrome
Complex IV
Takes electrons from cytochrome c and passes them to molecular oxygen
How is energy conserved through the electron transport chain
Proton gradient across the inner mitochondrial membrane and oxidation of NADH FADH2 ubiquionine and cytochrome c
How is the energy that is stored in the H+ gradient used?
- electron motive force (proton)
- molecular turbine
Chemiosmosis
Electrons pass through the complex of the transport chain as protons move from the matrix to outside of inner mitochondrial membrane.
Vectoral
Energy transformation
Release energy as it is down conc gradient. Proton motive force
ATP synthesis uses what enzyme
ATP synthase, allows protons to pass through and uses energy released from down conc gradient to combine ADP and Pi
Two parts of ATP synthase
F0 and F1- where it occurs. Rotation of F0 cylinder forces conformational changes in the beta subunits of F1 this conformational change catalyses ADP into ATP
