Question

The special feature of bile juice is that it:-
a. Has no enzyme
b. Has amylase
c. Contains lipase
d. Contains $H_2O$

Answer 1

Hint: Bile is a yellow-green fluid that is made by the liver, stored in the gallbladder and passes through the common bile duct into the duodenum where it helps digest fat.

Complete answer:
Bile flows out of the liver through the left and right hepatic ducts, which come together to form the common hepatic duct. This duct then joins with a duct connected to the gallbladder, called the cystic duct, to form the common bile duct. Bile salts go through this cycle about 10 to 12 times a day.
Bile contains bile acids (primary and secondary) are critical for digestion and absorption of fats and fat-soluble vitamins in the small intestine. Many waste products, including bilirubin, are eliminated from the body by secretion into bile and elimination in faeces.
Bile juice contains bile salts such as taurocholic acid and glycocholic acid (derivatives of cholic acid) and taurochenodeoxycholic acid and glycochenodeoxycholic acid (derivatives of chenodeoxycholic acid) which break down large fat globules into smaller globules by micelle formation so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats.
Bile juice contains no digestive enzymes, yet it is important for digestion.

So the correct option is ‘A’- has no enzyme.

Note: The composition of hepatic bile is (97–98)% water, 0.7% bile salts, 0.2% bilirubin, 0.51% fats (cholesterol, fatty acids, and lecithin), and 200 milliequivalent/L inorganic salts. ... About 400 to 800 millilitres of bile is produced per day in adult human beings.
Amylase and Lipase are not present in bile juice.