Where is insulin produced?

Where is insulin produced?

• A. Adrenal glands
• B. Liver
• C. Muscle tissue
• D. Beta cells in islets of Langerhans

Answer: (D)

Insulin is produced by the beta cells located in the islets of Langerhans within the pancreas. These specialized cells synthesize and store insulin, releasing it when blood glucose levels rise after a meal. The pancreas is the organ that carries out endocrine functions like insulin production, while other tissues listed do not produce insulin themselves—adrenal glands release hormones like adrenaline, the liver and muscle tissue are primary targets of insulin rather than producers.

Insulin is produced by the beta cells located in the islets of Langerhans within the pancreas. These specialized cells synthesize and store insulin, releasing it when blood glucose levels rise after a meal. The pancreas is the organ that carries out endocrine functions like insulin production, while other tissues listed do not produce insulin themselves—adrenal glands release hormones like adrenaline, the liver and muscle tissue are primary targets of insulin rather than producers.