Fat carriers and compositions

Question 1

VLDL - what is it and what does it do?

Answer 1

Very low density lipoprotein
livers cholesterol is packaged in VLDL along with the TAG and taken out to body tissues (muscle, adipose etc.)

Question 2

LDL - what is it, what is it made from and what does it do?

Answer 2

Low density lipoprotein
takes fat (and TAG) away from the liver to peripheral tissues
made from VLDL remnants
bad for health as it deposits cholesterol in the arteries of the body

Question 3

HDL - what is it and what does it do?

Answer 3

High density lipoprotein
takes cholesterol from the tissues back to the liver for processing

Question 4

Chylomicrons composition - percentage of TAG’s, cholesterol and phospholipids

Answer 4

98% TAG’s
1% cholesterol
1% phospholipids

Question 5

VLDL composition - percentage of TAG’s, cholesterol and phospholipids

Answer 5

60% TAG’s
20% cholesterol
20% phospholipids

Question 6

LDL composition - percentage of TAG’s, cholesterol and phospholipids

Answer 6

15% TAG’s
60% cholesterol
25% phospholipids

Question 7

HDL composition - percentage of TAG’s, cholesterol and phospholipids

Answer 7

10% TAG’s
30% cholesterol
60% phospholipids