The opposing roles of insulin and glucagon. Concept introduction: The pancreas contains alpha cells which secrete the glucagon that elevates the blood glucose level, and beta cells which secrete insulin that reduces the concentration of glucose in the blood. Regulation of glucose level in blood by insulin and glucagon is a type of negative feedback control.

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Chapter 28.4, Problem 4MC

Summary Introduction

To describe:

The opposing roles of insulin and glucagon.

Concept introduction:

The pancreas contains alpha cells which secrete the glucagon that elevates the blood glucose level, and beta cells which secrete insulin that reduces the concentration of glucose in the blood. Regulation of glucose level in blood by insulin and glucagon is a type of negative feedback control.

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