End notes

Question 1

3 NADH, 2 CO2, 1 FADH2, and 1 GTP are produced in Krebs. What happens to them?

Answer 1

They enter ETC

Question 2

Once the products of Krebs enter into ETC, how do they release their energy?

Answer 2

Oxidative phosphorylation

Question 3

What is different about NADH and FADH2?

Answer 3

They cannot cross mitochondrial membrane, but be shuttled across

Question 4

What shuttles NADH and FADH2 into the mitochondria?

Answer 4

Glycerol 3- phosphate and Malate-aspartate shuttles

Question 5

Is ATP produced in the Krebs cycle?

Answer 5

no

Question 6

When is ATP (indirectly via Krebs) released?

Answer 6

When NADH and FADH2 enter the ETC in mitochondrion

Question 7

Two molecules of pryruvate from 1 glucose molecule with yield how many ATP’s with Krebs?

Answer 7

24

Question 8

What is the total energy production?

Answer 8

38 ATPs

Question 9

What are the 4 points where proteins can enter Krebs? (SOFA)

Answer 9

Succinyl CoA
Oxaloacetate
Fumarate
alpha-ketoglutarate

Question 10

What are the two points where fats can enter Krebs? (AS)

Answer 10

Alpha-ketoglutarate

Succinyl CoA