Terminal Respiration Flashcards Preview

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Flashcards in Terminal Respiration Deck (15):
1

What is the function of the Citric Acid Cycle?

Acts as the common metabolic process for all fuel molecules

2

Where does the citric acid cycle occur?

In the mitochondrial matrix

3

How does the citric acid cycle form ATP?

It takes electrons and passes them on to form NADH and FADH2

4

Acetyl CoA is formed from ___ and ___

pyruvate or from fatty acids

enters the cycle

5

What is formed for every turn of the citric acid cycle?

3 NADH
2 CO2
1 FADH2
1 GTP

6

The final stage of respiration is the

electron transport chain

7

The electron transport chain occurs in ___

the mitochondrial matrix and the intramembranous space

8

What four proteins are involved in the electron transport chain?

- NADH-Q Oxidoreductase
- Succinate-Q Reductase
- Q-cytochrome C Oxidoreductase
- Cytochrome C Oxidase

9

What does NADH-Q Oxidoreductase do in the electron transport chain?

- reduces NADH
- passes the electrons to Ubiquinone to give to Ubiquinol

10

What does Succinate-Q Reductase do in the electron transport chain?

- reduces FADH2
- passes electrons from Ubiquinone to Ubiquinol

11

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

12

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

13

The pumping of protons sets up

a proton gradient across the inner membrane of the mitochondria

14

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

15

As the protons pass through this protein, energy is released which ATP Synthase uses to

turn ADP + Pi into ATP through binding change mechanism