Question

Which apoprotein is needed for the release of chylomicrons from intestinal cells into the lymph? Which two apoproteins are needed for chylomicron remnant uptake into the liver?

a) Apo B-48; Apo C-II and Apo E
b) Apo E; Apo B-100 and Apo C-II
c) Apo A-I; Apo B-100 and Apo C-II
d) Apo C-II; Apo A-I and Apo E

Answer 1

Apo B-48 is needed for the release of chylomicrons from intestinal cells into the lymph. Apo E and Apo B-100 are needed for chylomicron remnant uptake into the liver. Apo C-II is also needed for chylomicron remnant uptake into the liver.

Step-by-step explanation:

The apoprotein needed for the release of chylomicrons from intestinal cells into the lymph is Apo B-48. The two apoproteins needed for chylomicron remnant uptake into the liver are Apo E and Apo B-100. Apo C-II is also needed for chylomicron remnant uptake into the liver.