Lecture 45: Cholesterol Transport and Uptake Flashcards Preview

MGM Exam 2 (C) > Lecture 45: Cholesterol Transport and Uptake > Flashcards

Flashcards in Lecture 45: Cholesterol Transport and Uptake Deck (12):
1

What are lipoprotein particles?

They are spherical particles with varying amounts of lipid and protein.
The maintain the solubility of lipids and transport them in the plasma.

2

What are the lipid components of lipoprotein particles?

triacylglycerol
cholesterol esters
phospholipids

3

What are the protein components of lipoprotein particles?

apolipoproteins (A-E)

4

What is the importance of lipoprotein particles?

important in release of lipoprotein particles from the cell

mediate uptake of lipoprotein particles into cells

activate lipid processing enzymes

5

What percentage of chylomicrons are triacylglycerol?

90%

6

Which lipoprotein particle has the least density?

HDL

7

What is the name of the disease that is linked to elevated plasma and/or chylomicrons which cause small pustules in the skin?

Cutaneous xanthomas

8

T/F: Tuberous xanthomas are harder and more firm and thicker than cutaneous xanthomas.

True.

9

Where are chylomicrons assembled?

intestine

10

What is a specific distinguishing marker for chylomicrons

apo B48

11

Where are VLDL and LDL made?

They are made in the liver

12

What is the distinguishing marker of VLDL and LDL?

apo B 100