Question 7
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
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. Bile juice has bile pigments such as bilirubin and biliverdin. These break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them. This process is known as the emulsification of fats. Bile juice also makes the medium alkaline due to presense of NaHCO3 and also activate lipase.
