3.6-7: Citric Acid Cycle

Question 1

Where in the mitochondria does the krebs cycle occur?

Answer 1

Mitochondrial matrix (fluid)

Question 2

What does the citric acid cycle generally do? Like what occurs (5)

Answer 2

1. Turns acetyl CoA (2C) into citrate (citric acid) (6C)
2. Releases CO2
3. ATP is synthesized
4. Electrons transferred to NADH and FADH2
   - acetyl CoA is being reduced (anaabolic/endergonic)

Question 3

So basically, what is the summarized pathway in the krebs cycle (what are the reactants and products) PER GLUCOSE MOLECULE?

Answer 3

Input is 2 acetyl CoA

Output is 2 ATP, 6 NADH, 4 CO2, 2 FADH2

Question 4

What is the net production of ATP in the krebs cycle?

Answer 4

2 ATP