Question

Chylomicrons are ___________________.
A. Fat droplets coated with phospholipids.
B. Fat droplets coated with cholesterol and protein.
C. Undigested proteins.
D. Undigested carbohydrates.

Answer 1

Hint: Chylomicrons particles contain fats and proteins which are found in the lower part of the stomach where various gastric juices are synthesized and these juices help in carrying fat molecules from one part of the body to numerous different elements of the body.

Complete step by step answer: Fatty acids and glycerol are not soluble and hence, cannot be absorbed in the blood. So, they're initially incorporated into tiny droplets which are referred to as micelles that go into the intestinal mucosa. They are re-formed into protein-coated fat globules which are known as chylomicrons which are then transported by vessels (lacteals)at intervals within the villi. The lymph vessels ultimately unleash the absorbed substances into the blood. Thus, chylomicrons are fat droplets coated with steroids and proteins. Chylomicrons are conjugated protein particles that arise from the endoplasmic reticulum of the cells. Chylomicrons consist of triglycerides, phospholipids, sterol, and proteins. These are tiny droplets that are found within the intestine once the process of digestion of fats is completed. They are also responsible for transporting dietary lipids from one part of the body to another. At different sites in our body acyl glycerol also known also triglycerides is hydrolyzed by the activity of enzyme lipase and also free fatty acids are discharged and absorbed by the tissue.

Hence, the correct answer is option B- Fat droplets coated with cholesterol and protein.

Note: The term chylomicron was coined by Gage and Fish in the year 1924. It is derived from ‘chylos’ which is a Greek word and means juice and as known micron means small or tiny particles. The chylomicron has three distinct stages which are as mentioned as follows-the first one is Nascent chylomicron, Mature chylomicron, and Chylomicron remnant.