Fat Metabolism

Question 1

Sources of fat for fat metabolism

Answer 1

1) Adipose tissue
2) Triglyceride ( in muscle)
3) Digestion (in blood)

Question 2

How does a fatty acid enter the muscle

Answer 2

Attaches to a binding protein on the muscle

Question 3

Fatty acid to Fatty Acyl Co A

Answer 3

ATP + CoA + FA
↓
Fatty Acyl CoA

Question 4

Carnitine Shuttle

Answer 4

Fatty acycl CoA reacts with a carnitine molecule to enter the mitochondria
enzyme: carnitine acyl coA transferase

Question 5

Beta Oxidation Purpose

Answer 5

Purpose is to remove Acetyl CoA

Question 6

Rate limiting for Beta oxidation

Answer 6

b- ketothiolase enzyme

Question 7

Beta Oxidation Products

Answer 7

Per cycle
1 NADH H+
1 FADH2
1 Acetyl CoA

Question 8

Are carbohydrates needed to metabolize FAT?

Answer 8

Yes, because oxaloacetate is necessary
Need pyruvate to produce oxaloacetate

Question 9

Pyruvate Carboxylase

Answer 9

Catalyzes the conversion of pyruvate to oxaloacetate

Question 10

3 lipid groups

Answer 10

1) Simple- triacylglycerols
2) compound- phospholipids and lipoproteins
3) derived- cholesterol

Question 11

Lipids role in the body (4 main roles)

Answer 11

1) Energy source
2) Protects organs
3) insulator
4) Hunger supressor and vitamin carrier