Insulin in secreted by pancreatic cells-

Options

A. `alpha-`cells
B. `beta-`cells
C. Delta cells
D. Gamma cells

Answer

**Step-by-Step Solution:**

1. **Identify the Question:** The question asks which pancreatic cells are responsible for the secretion of insulin.

2. **Understand the Pancreas Structure:** The pancreas contains clusters of cells known as the islets of Langerhans, which are responsible for producing hormones.

3. **Examine the Types of Cells in the Islets of Langerhans:**
- **Alpha Cells:** These cells secrete glucagon, a hormone that increases blood sugar levels.
- **Beta Cells:** These cells secrete insulin, a hormone that decreases blood sugar levels.
- **Delta Cells:** These cells secrete somatostatin, which inhibits the secretion of other hormones.
- **Gamma Cells:** These cells secrete pancreatic polypeptides.

4. **Determine the Correct Cell Type for Insulin Secretion:** Since the question specifically asks for the cell type that secretes insulin, we focus on the beta cells.

5. **Conclusion:** The beta cells in the islets of Langerhans are responsible for the secretion of insulin.

**Final Answer:** Insulin is secreted by the beta cells of the pancreas.

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