Question

Assertion : Glycerides ale important nutrients for body.

Reason : Glycerides are hydrolysed into glycerol and fatty acids which are further absorbed in intestine by the formation of chylomicron.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option**(c) A is true but R is false**

Explanation:

Glycerides, mainly triglycerides are a principle form of fats present in our food. During digestion, fats are digested to form monoglycerides and free fatty acids. They first become dissolved in the central lipid portions of bile micelles which are soluble in chyme. In this form the monoglycerides and free fatty acids are carried to the surf-aces of the microvilli of the intestinal cell brush border and then penetrate into the interior of the epithelial cells, which is possible because the lipids are also soluble in the epitheliai cell membrane. This leaves the bile micelles still in the chyme, where they function again and to help absorb still more monoglycerides and fatty acids After entering the epithelial cell. the fatty acids and monoglycerides are taken up by the cell'* smooth endoplasmic reticulum; here they are mainly used to form of triglycerides that are subsequently released in the form of chylomicrons throurgh the base of the epithelial cell. to flow upward through the thoracic lymph duct and empty into the circulating blood. Thus, chylomicrons help in transport of glycerides through blood circulation to various body parts.