7. Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
Answer
The bile juice secreted by the liver does not contain any digestive enzymes, however, it plays an important role in the digestion of fats. It contains bile salts such as bilirubin and biliverdin which break down large fat globules into smaller globules. This makes sure that the pancreatic enzymes can easily act on the fat globules. This process is known as emulsification of fats. Bile juice also makes the medium alkaline and activates lipase. Hence, bile juice contains no digestive enzymes, yet it is important for digestion