Question

The chemical nature of hormones secreted by $\alpha \,and\,\beta$ cells of pancreas is

• A. glycolipid
• B. glycoprotein
• C. steroid
• D. polypeptide

Answer 1

Answer: (D)

polypeptide

Answer 2

The endocrine part of pancreas is represented by about a million of islets of Langerhans with 5 types of endocrine cells secreting different hormones-a cells (glucagon), $\beta$ - cells (insulin), $\gamma$ cells (gastrin), 8-cells (somatostatin) and F cells (pancreatic polypepride). Insulin, glucagon and somatostatin all are polypeptides.

So, the correct answer (D): polypeptide