The enzyme that digests fats into fatty acids and glycerol is secreted mainly by the

Explanation

Pancreatic juice contains lipase along with amylase and trypsinogen, and it enters the duodenum through the pancreatic duct, which is also where bile arrives to emulsify the fat first. The gall bladder only stores and concentrates bile and secretes no enzymes at all. A small amount of lipase is made in the stomach but it contributes very little in an adult.