Question

Bile juice contains no digestive enzymes, yet it is important for digestion. Why?

Answer 1

Bile secretion:

Bile is a digestive juice secreted by the liver. Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats.

Fat digestion with the help of bile:

Bile juice has bile salts such as sodium taurocholate and sodium glycocholate. These break down large fat globules into smaller globules and make the small intestine alkaline so that the lipase present in the pancreatic enzymes gets activated and can easily act on them. This process is known as emulsification of fats which helps with the digestion of fats and also the absorption of fats through the villi of the small intestine. The absorption occurs in the form of micelles to pass through the villi and enter the lacteals of the lymph vessels present under the villi.