Flashcards in Terminal Respiration Deck (15):
What is the function of the Citric Acid Cycle?
Acts as the common metabolic process for all fuel molecules
Where does the citric acid cycle occur?
In the mitochondrial matrix
How does the citric acid cycle form ATP?
It takes electrons and passes them on to form NADH and FADH2
Acetyl CoA is formed from ___ and ___
pyruvate or from fatty acids
enters the cycle
What is formed for every turn of the citric acid cycle?
The final stage of respiration is the
electron transport chain
The electron transport chain occurs in ___
the mitochondrial matrix and the intramembranous space
What four proteins are involved in the electron transport chain?
- NADH-Q Oxidoreductase
- Succinate-Q Reductase
- Q-cytochrome C Oxidoreductase
- Cytochrome C Oxidase
What does NADH-Q Oxidoreductase do in the electron transport chain?
- reduces NADH
- passes the electrons to Ubiquinone to give to Ubiquinol
What does Succinate-Q Reductase do in the electron transport chain?
- reduces FADH2
- passes electrons from Ubiquinone to Ubiquinol
What does Q-Cytochrome C Oxidoreductase do in the electron transport chain?
- takes the electrons from Ubiquinol and passes them to cytochrome C
- pumps H+ ions into the intramembranous space
What does Cytochrome C Oxidase do in the electron transport chain?
- takes electrons from cytochrome c and passes them to oxygen
- pumps protons into intramembranous space
The pumping of protons sets up
a proton gradient across the inner membrane of the mitochondria
Proton motive force allows
the proton gradient to work, as the protons try to get back through the membrane to make up the difference in concentration