Lipolysis

When is fat used for metabolism?

when lots of carbs are consumed using anabolism

When are fats packaged during metabolism?

* when Acetyl CoA breaks down into 2 Carbons + CoA
* Kreb’s is not needed during this

Lipolysis

breakdown of fats; catabolism

When is lipolysis used?

when energy is needed and keeps blood glucose regulations

(1) Lipolysis

Priming

(1) Lipolysis Equation

* FFA + CoA → Acyl CoA
* ATP → AMP
* 2 ATP used

(2) Lipolysis

Beta Oxidation

(2) Lipolysis Explanation

* continuously breaking down the carbon-fat molecule in 2 Carbons + Acetyl CoA
* the remaining carbons continue through the process until none are left

(2) Lipolysis Coenzymes

* NAD → NADH
* FAD → FADH2

Equation for # of Beta-Oxidation Cycles

* n/2 - 1
* n = # of carbons

Equation for # of Acetyl CoA

* n/2
* n = # of carbons

(3) Lipolysis

Kreb Cycle

(3) Lipolysis Explanation

the new Acetyl CoA is put through it to gain 12 ATP

Number of ATP through lipolysis

* 2 used in priming
* 5 from Beta-Oxidation
* 12 from Kreb’s