BRAINCAKEDiabetes Mellitus
There are two types of diabetes in which the body cannot control the blood glucose concentration. After a meal the person develops a high blood glucose concentration (hyperglycaemia) and after fasting or exercise they may develop a low blood glucose concentration (hypoglycaemia) because of a failure to store glycogen.
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Key terms in this lesson
- insulin
- A hormone secreted by the beta cells of the islets of Langerhans in response to a rise in blood glucose concentration, which lowers blood glucose by stimulating cells to take up and use or store glucose.
- homeostasis
- The maintenance of a constant internal environment within narrow limits around a set point, using control systems based on negative feedback.
More in Hormonal Communication
- The Adrenal Glands
- Adrenal Cortex
- Adrenal Medulla
- Pancreas
- Blood glucose concentration
- Insulin
- Glucagon
- Mechanism of Insulin Secretion
All 11 lessons in Hormonal Communication · All AQA A-level Biology topics