Pyruvate Oxidization

Question 1

Pyruvate oxidation

Step 1?

Answer 1

-pyruvate molecules enter matrix with help of membrane carrier to pass through inner and outer membrane of mitochondria

Question 2

Pyruvate oxidation

Step 2?

Answer 2

• Coenzyme A attached to acetal group of pyruvate molecule which allows it to be oxidized
• NAD+ is reduced to NADH

Question 3

Pyruvate oxidation

Step 3?

Answer 3

• remaining carboxylate group removed as waste in form of CO2
• results in acetyl-CoA

Question 4

Pyruvate oxidation

Step 4?

Answer 4

-when there is energy needed, acetyl-CoA enters the Krebs cycle to continue aerobic respiration

Question 5

Pyruvate oxidation

Pyruvate oxidation?

Answer 5

• 2nd stage in cell respiration

- 4 steps

Question 6

Pyruvate oxidation

Summary?

Answer 6

-2 NADH