BIOSCI 101 CAC

Question 1

What Happens in Stage 1 of the CAC?

Answer 1

Acetyl group added to oxaloacetate, CoA-SH removed.

Question 2

What Happens in Stage 2 of the CAC?

Answer 2

Isocitrate produced, this stage is very sensitive to free radicals.

Question 3

What Happens in Stage 3 of the CAC?

Answer 3

Isocitrate converted to alpha ketoglutarate, CO2 removed, NAD reduced to NADH.

Question 4

What Happens in Stage 4 of the CAC?

Answer 4

Converted to succinyl coA, CO2 removed, NAD reduced to NADH.

Question 5

What Happens in Stage 5 of the CAC?

Answer 5

CoA removed to give succinate, Pi added to GDP to produce GTP, ATP formed.

Question 6

What Happens in Stage 6 of the CAC?

Answer 6

Enzyme fixed in place, succinate oxidised to fumarate, FAD reduced to FADH2.

Question 7

What Happens in Stage 7 of the CAC?

Answer 7

Water added to fumarate to produce malate.

Question 8

What Happens in Stage 8 of the CAC?

Answer 8

Malate converted to oxaloacetate, NAD converted to NADH.