Which organ detoxifies the blood and produces bile?

• A. Kidney
• B. Spleen
• C. Pancreas
• D. Liver

Answer: (D)

The liver handles both detoxifying the blood and producing bile. It receives blood from the digestive system and uses hepatocytes to metabolize and neutralize toxins, drugs, and metabolic wastes through sequential steps (Phase I oxidation and Phase II conjugation), making them easier to eliminate. In addition to detoxification, the liver synthesizes bile, a digestive fluid that contains bile acids (bile salts) and other substances to emulsify fats. Bile is produced by liver cells and stored in the gallbladder, then released into the small intestine as needed after meals.

Other organs listed don’t perform this combination of tasks: the kidneys filter blood to remove waste into urine but don’t produce bile; the spleen filters blood and recycles cells without detoxifying toxins or making bile; the pancreas mainly secretes digestive enzymes and bicarbonate into the intestine, not bile or broad detoxification.