Lipoprotein functions

Question 1

Chylomicron

Answer 1

Delivers dietary TGs to *peripheral tissue.

Delivers cholesterol to *liver in the form of chylomicron
remnants, which are mostly depleted of their TGs.

Secreted by intestinal epithelial cells.

Question 2

VLDL

Answer 2

Delivers hepatic TGs to peripheral tissue.

Secreted by liver.

Question 3

IDL

Answer 3

Formed in the degradation of VLDL.

Delivers TGs and cholesterol to liver

Question 4

LDL

Answer 4

Delivers hepatic cholesterol to *peripheral tissues.

LDL is Lousy.

Formed by hepatic lipase modification of IDL in the liver and peripheral tissue.

Taken up by target cells via receptor-mediated endocytosis

Question 5

HDL

Answer 5

Mediates reverse cholesterol transport from periphery to *liver.

HDL is Healthy

Acts as a repository for
apolipoproteins C and E (which are needed for chylomicron and VLDL metabolism).

Secreted from both liver and intestine.

Alcohol INC synthesis.