Kreb's Cycle / Citric Acid Cycle

Question 1

What does the Kreb’s Cycle come after?

Answer 1

Glycolysis

Question 2

Where does the Kreb’s Cycle take place?

Answer 2

The Mitochondria

Question 3

Kreb’s Cycle

Answer 3

Takes place in the Mitochondria matrix.

• Pyruvate through facilitated diffusion enters
• It goes through 8 or 9 reactions
• Each reaction has an intermediate and enzyme

Question 4

What must happen to Pyruvate before the Kreb’s Cycle?

Answer 4

It must become Acetyl CoA first

Question 5

What is produced when Pyruvate becomes Acetyl CoA?

Answer 5

1 NADH

1 CO2

Question 6

What is the Net of 1 Pyruvate in the Kreb’s Cycle?

Answer 6

1 ATP
4 NADH
1 FADH2
3 CO2

Question 7

What is the Net of 1 Glucose in the Kreb’s Cycle?

Answer 7

2 Pyruvate 
2 ATP
8 NADH
2 FADH2
6 CO2