Q155 / 180 · NEET 2026 (Re-NEET) · Zoology
Which one of the following statements is incorrect ?
- A$\beta$-cells of pancreas secrete insulin
- B$\alpha$-cells of pancreas secrete glucagon
- Correct answerC$\alpha$-cells of pancreas secrete insulin
- DGlucagon stimulates glycogenolysis
Solution
The pancreas contains Islets of Langerhans, which have two main types of cells: $\alpha$-cells and $\beta$-cells.
The $\alpha$-cells secrete the hormone glucagon, which increases blood glucose levels by stimulating glycogenolysis.
The $\beta$-cells secrete the hormone insulin, which decreases blood glucose levels.
Therefore, the statement that $\alpha$-cells secrete insulin is incorrect.
Answer: $\alpha$-cells of pancreas secrete insulin
The $\alpha$-cells secrete the hormone glucagon, which increases blood glucose levels by stimulating glycogenolysis.
The $\beta$-cells secrete the hormone insulin, which decreases blood glucose levels.
Therefore, the statement that $\alpha$-cells secrete insulin is incorrect.
Answer: $\alpha$-cells of pancreas secrete insulin
Hence, the correct answer is option: 'C'.