Communication and Homeostasis

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Presentation transcript:

Communication and Homeostasis Insulin

Spec (d) how blood glucose concentration is regulated To include the action of insulin and glucagon as an example of negative feedback, and the role of the liver AND the control of insulin secretion, with reference to potassium channels and calcium channels in the beta cells of the pancreas.

Starter Glucose karaoke

Learning Objectives Success Criteria Know about blood glucose control Explain how blood glucose concentration is regulated, outlining the control of insulin secretion

Mechanism of Insulin Secretion

Beta Cells: Recap When blood glucose concentration is high Beta cells secrete insulin Target cells hepatocytes & muscle cells Glucose converted to glycogen (glycogenesis)

Beta Cell in Islets of Langerhans

Task Create wheel or cartoon summary Use page 69 (p26 of old textbook)

Plenary Compare synaptic transmission with insulin secretion Can use framework