Chemical Coordination and IntegrationMedium
Question
Which one of the following statements is incorrect?
Options
A.Glucagon stimulates glycogenolysis
B.$\beta$-cells of pancreas secrete insulin
C.$\alpha$-cells of pancreas secrete glucagon
D.$\alpha$-cells of pancreas secrete insulin
Solution
Sol. [Key Concept: Hormonal control — glucagon and glycogenolysis]
The two main types of cells in the Islet of Langerhans are called $\alpha$-cells and $\beta$-cells.
The $\alpha$-cells secrete a hormone called glucagon, while the $\beta$-cells secrete insulin.
Glucagon stimulates glycogenolysis while insulin stimulates glycogenesis.
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