Question 1

1. Where does the Citric Acid Cycle (Kreb's Cycle) happen?

Accepted Answer

- in the mitochondrial matrix

Question 2

2. Where does Oxidative Phosphorylation happen?

Accepted Answer

- in the inner mitochondrial membrane

Question 3

3. Where is the Electron Transport Chain (ETC) located?

Accepted Answer

- it is located on the Inner Mitochondrial Membrane

Question 4

4. What is Chemiosmosis?

Accepted Answer

- this is where the H⁺ gradient drives ATP Synthesis - it does this through the use of ATP Synthase - this process takes place in the Mitochondrial Matrix ATP SYNTHASE: - an enzyme located on the Inner Mitochondrial membrane

Question 5

5. What are three key aspects that are found in the Inner Mitochondrial Membrane?

Accepted Answer

1. Krebs Cycle Enzymes 2. Electron Transport Chain enzymes and complexes 3. ATP Synthase Complexes (F₀ F₁ ATPase = a transmembrane enzyme)

Question 6

6. Where does the Citric Acid Cycle take place?

Accepted Answer

- in the Mitochondrial Matrix

Question 7

7. What does the Citric Acid cycle complete?

Accepted Answer

- the oxidation of organic molecules THIS RESULTS IN THE PRODUCTION OF: - CO2 - Energy

Question 8

9. What produces the Acetyl-Coenzyme: A Acetyl-CoA?

Accepted Answer

- Glycolysis - Beta Oxidation of Fatty Acids

Question 9

10. What is responsible for breaking down Fatty Acid chains?

Accepted Answer

- Peroxisomes

Question 10

11. What produces Citric Acid?

Accepted Answer

PYRUVATE IS BROKEN DOWN: - CO2 is released ACETYL-COA: - binds to Oxaloacetate (OAA) THIS PRODUCES: - Citric Acid

Question 11

12. What coenzymes are produced during the Citric Acid Cycle?

Accepted Answer

- NAHD - FADH₂ - they are then transferred to the Electron Transport chain

Question 12

13. What are the net products that are produced through the Krebs Cycle?

Accepted Answer

EACH ACETYL-COA THAT ENTERS THE CYCLE IS CONVERTED TO: - 2 CO2 - 3 NADH - 1 FADH₂ - 1 ATP

Question 13

14. Which aspects contribute to the Krebs Cycle Energy Gain?

Accepted Answer

- 1 ATP - 3 NADH - 1 FADH₂ 1 NADH = 3 ATP molecules (∴ 9 ATP molecules) 1 FADH₂ = 2 ATP molecules (∴ 2 ATP molecules)

Question 14

15. What is the Net Energy Profit of the Kreb's Cycle?

Accepted Answer

- 12 molecules of ATP from one Krebs Cycle

Brainscape's Knowledge GenomeTM

38. CITRIC ACID CYCLE (KREBS CYCLE) Flashcards

Brainscape's Knowledge Genome^TM