Question

___(i)____ regulates blood sugar levels and is secreted from beta-cells of ___(ii)____.

• A. (i)Glucagon, (ii)pancreas
• B. (i)Insulin, (ii)pancreas
• C. (i)Insulin, (ii)liver
• D. (i)Glucagon, (ii)liver

Answer 1

The correct option is B (i)Insulin, (ii)pancreas

Insulin is secreted by beta cells of pancreas and regulates blood sugar levels in the body. Approximately 3 million cell clusters called pancreatic islets or islets of langerhans are present in the pancreas. Within these islets are two major types of cells which are involved in the regulation of blood glucose levels. Each type of cell secretes a different type of hormone: $\alpha$ alpha cells secrete glucagon (increase glucose in blood), $\beta$ beta cells secrete insulin (decrease glucose in blood).