Which one of the following is not secreted by pancreas?
(a) Insulin
(b) Glucagon
(c) Renin
(d) Somatostain

Options

A. Insulin
B. Glucagon
C. Renin
D. Somatostain

Answer

To solve the question "Which one of the following is not secreted by the pancreas?" we will analyze each option provided:

1. **Understanding the pancreas**: The pancreas is a heterocrine gland, meaning it has both exocrine and endocrine functions. The exocrine part produces digestive enzymes, while the endocrine part produces hormones.

2. **Analyzing the options**:
- **(a) Insulin**: This hormone is produced by the beta cells of the islets of Langerhans in the pancreas. Therefore, insulin is secreted by the pancreas.
- **(b) Glucagon**: This hormone is produced by the alpha cells of the islets of Langerhans in the pancreas. Thus, glucagon is also secreted by the pancreas.
- **(c) Renin**: Renin is an enzyme that is secreted by the juxtaglomerular cells of the kidneys, specifically from the juxtaglomerular apparatus. It is not produced by the pancreas.
- **(d) Somatostatin**: This hormone is produced by the delta cells of the islets of Langerhans in the pancreas. Therefore, somatostatin is secreted by the pancreas.

3. **Conclusion**: Since insulin, glucagon, and somatostatin are all secreted by the pancreas, the only option that is not secreted by the pancreas is **(c) Renin**.

**Final Answer**: (c) Renin