X Hormonal Control 2 - Hormonal Control of Metabolism...

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Hormonal Control of Metabolism • Intracellular signal transduction pathways • Receptor protein kinases • Growth hormones, oncogenes and cancer Learning Objectives
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Fig 13-12 Signal Transduction • Endocrine glands synthesize and release hormones, which are carried by the bloodstream to the target cells. • Example hormones: insulin, glucagon, catecholamines, steroids. • Metabolic processes of the organism are under strict hormonal and neuronal control.
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Signal Transduction • A hormone or neurotransmitter may affect biochemical reactions within a cell only if the cell has a corresponding receptor for the signal. • A typical cell has receptors for many signaling molecules. Response to a particular signal depends on whether and how the signal transduction pathway reacts to other signals. • The receptor activation initiates reactions in a signal transduction pathway that triggers the cell response.
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This note was uploaded on 04/10/2011 for the course SCIENCE 2EE3 taught by Professor Zhorov during the Spring '11 term at McMaster University.

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X Hormonal Control 2 - Hormonal Control of Metabolism...

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