Question

Bilirubin and biliverdin are present in
A. Pancreatic juice
B. Saliva
C. Bile juice
D. Intestinal juice

Answer 1

Hint: Bilirubin and biliverdin are the components which are helpful in the digestion of the fat molecules. They help in the digestion process by aiding the conversion of larger fat molecules into the smaller ones and then further digestion of fats takes place.

Complete answer:
The process of digestion is performed in the human body so that the food consumed in the complex form can be converted into simpler form so it will be easier for the tissues and cells to absorb and utilize this for proper growth and development of the body.
Bilirubin and biliverdin are present in the bile juice. The bile juice is the one which is secreted by the liver and it performs the function of emulsification of the fat which is a necessary step to start the fat digestion. Emulsification of the fats is the process in which the larger fat globules are converted into smaller fat globules, this is done to increase the surface area of the molecules so that the enzymes present further in the small intestine can easily digest these fat molecules and ultimately convert them into fatty acids and glycerol.
The bile juice is the juice which is secreted by the liver and stored in the gallbladder. The small intestine receives pancreatic juice from the pancreas through duodenum and also has succus entericus which is intestinal juice. The enzyme lipase is responsible for carrying out the process of digestion. The simpler units are then transported to the lymph vessels, from where these are absorbed and utilized by the other tissues of the body.

The correct answer is (C).

Note: The bile juice contains bile pigments and bile salts and they are secreted in the liver, they are helpful in the emulsification of the fat molecules.