Question
Distinguish between insulin and adrenaline.
Answer
| Insulin | Adrenaline |
|---|---|
| Secreted by the beta cells of the pancreas | Secreted by the adrenal medulla |
| Lowers blood glucose level | Increases blood glucose level |
| Stimulated by high blood glucose level | Stimulated by stress or physical activity |
| Promotes storage of glucose in liver, muscle and fat cells | Promotes breakdown of glycogen in liver and muscle cells and release of glucose into the blood |
| Not involved in the “fight or flight” response | Involved in the “fight or flight” response by increasing heart rate, blood pressure, and respiration rate. |
