Lecture 11 Objectives

Question 1

What is the storage form of lipids?

Answer 1

TAG

Question 2

What are the types of lipoproteins?

Answer 2

Chylomicron, VLDL, IDL, HDL

Question 3

What is the function of lipoproteins?

Answer 3

Function as lipid transport molecules

Question 4

What is the function of apoprotein B-48?

Answer 4

Emulsify fat globules

Question 5

What is the function of apoprotein C-II?

Answer 5

Recruit lipoprotein lipases

Question 6

What is the function of apoprotein E?

Answer 6

Recycle chylomicrons

Question 7

What fatty acid is produced from fault acid synthesis?

Answer 7

Palmitic acid

Question 8

Where does fatty acid synthesis occur?

Answer 8

In the cytosol of liver and fat cells

Question 9

What are the 3 stages of fatty acid synthesis?

Answer 9

1 - get acetyl-CoA into the cytosol
2 - activate the acetyl-CoA to get malonyl-CoA
3 - elongation to get palmitic acid

Question 10

What is the rate limiting enzyme in fatty acid synthesis?

Answer 10

Acetyl-CoA carboxylase

Question 11

How is acetyl-CoA carboxylase regulated?

Answer 11

Citrate, palmitic acid, insulin, glucagon

Question 12

Where does lipolysis occur?(type of cells)

Answer 12

Adipose cells

Question 13

What hormone stimulates the process of lipolysis?

Answer 13

Glucagon

Question 14

What second messenger is involved in lipolysis?

Answer 14

cAMP