Kreb cycle

Question 1

Series of _ reactions

Answer 1

8

Question 2

what is regenerated in Krebs cycle

Answer 2

C4 - oxaloacetate C4= 4 carbons

Question 3

what happens in kreb cycle

Answer 3

1)COA is released and Acetyl joins with oxaloacetate to from citrate

2)C6 releases a c02 and forms C5 while NAD+ gets reduced and turns into NADH + H

3)C5 releaes C02 and forms C4 while NAD+ gets reduced and turns into NADH + H

4)FADH2 is produced

5) ATP is formed by substrate-level phosphorylation and during this reaction it produces ATP. Oxidation also occurs twice (2 hydrogens are removed). The one hydrogen is accepted by NAD+ and forms NADH + H+.

6) oxaloacetate is regenerated with the formation of H20.

Question 4

where does kreb cycle occur?

Answer 4

matrix of mitochondria

Question 5

when acetyl joins with oxaloacetate what does it form?

Answer 5

citrate.

Question 6

overall what does the kreb cycle make

Answer 6

1 ATP
3 NADH
1 FADH2
this is only for one cycle out of the two*