HUMAN PHYSIOLOGY
DIGESTION AND ABSORPTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It is transported by HDLs from the liver to body tissues
|
|
|
It is transported by LDLs from body tissues to the liver and removed from blood
|
|
|
It is a trans-unsaturated fat
|
|
|
It is transported in lipoproteins
|
Detailed explanation-1: -The cholesterol present in peripheral tissues is taken up by high-density lipoproteins (HDL) and transferred to LDL. The latter particles are then degraded by the liver, and cholesterol is excreted in the bile.
Detailed explanation-2: -The incorporation of lipoproteins with the lipids enables a successful interaction of the hydrophobic fats with the plasma, enabling tissues to assimilate the lipids efficiently. Therefore, the option (c) Lipoproteins are produced in the body to transport fats is true regarding lipoproteins.
Detailed explanation-3: -HDL are the most complex of lipoprotein species with multiple protein constituents, which facilitate cholesterol secretion from cells, cholesterol esterification in plasma, and transfer of cholesterol to other lipoproteins and to the liver for excretion.
Detailed explanation-4: -The particles that package cholesterol, cholesteryl esters, and triglycerides for transport, are called lipoproteins.