Krebs Cycle

Question 1

What enters the krebs cycle?

Answer 1

-acetylecoenzyme A

Question 2

What are the key steps in the krebs cycle?

Answer 2

1. acetylecoenzyme A reacts with a 4C molecule (oxaloacetate) = 6C citrate
2. coenzyme is recycled back into the link reaction
3. series of redox reactions; 2x CO2, ATP, reduced FAD and 3x NADH

Question 3

What are the products per cycle?

Answer 3

• 3 x NADH, 1 x FADH2, 1 x ATP, 2 x CO2

Question 4

What are the products per glucose?

Answer 4

-6 x NADH, 2 x FADH2, 2 x ATP, 4 x CO2