Which organ produces bile that helps digest fats?

• A. Liver
• B. Spleen
• C. Pancreas
• D. Gall bladder

Answer: (A)

Bile production and its role in fat digestion are what's being tested here. The liver makes bile using its liver cells and releases it into ducts that lead to the gall bladder for storage. When fat enters the small intestine, bile is released into the gut and bile salts emulsify fats, turning large fat droplets into many smaller ones. This emulsification greatly increases the surface area available for pancreatic lipase to act, making fat digestion more efficient. The gall bladder simply stores and concentrates bile and releases it when needed, but it does not produce bile. The spleen isn’t involved in producing bile, and the pancreas produces digestive enzymes (including lipase) but not bile. So the organ responsible for producing bile is the liver.