BIOCHEM 2EE3 Lecture Notes - Lecture 7: Blood Sugar, Geranylgeranyl Pyrophosphate, Insulin Receptor
10 Apr 2018
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Document Summary
Long distance from remote locations - via hormones. Purpose: to elicit a specific reaction within the targeted cell or tissue. Insulin is a hormone that binds to an insulin receptor on a target tissue. The message being communicated is in response to meal intake. In response to increased blood glucose, pancreas releases insulin into bloodstream. Insulin will signal target cells that they should take up glucose. Signal transduction is communicating a message from the distant pancreas to the target cells in muscle and adipose tissue to take up glucose. Either use it or store it for later. Pheromones (act upon cells in a different organism) *all signal molecules are secreted in small amounts but exert a relatively larger and significant effect through the process of signal transduction - this is referred to as signal amplication. Hormones: small molecules secreted by endocrine glands which travel through the bloodstream and bind to specific receptors or in target cells.
