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Negative Feedback Control In animals such as ourselves, the internal environment of our bodies must have certain conditions within tolerable limits to continue healthy functioning. This is done by a process called negative feedback control, where various receptors and effectors bring about a reaction to ensure that such conditions remain favourable. The principle of negative feedback control is illustrated by the diagram below This occurrence is known as physiological homeostasis, translating in layman's terms to physical equilibrium. It is essentially a corrective mechanism; consider the following scenario in a person: • The level of glucose in the bloodstream drops • The person requires glucose in cells to meet their demands • The body detects this with a particular receptor designed for this function • These receptors release hormones, chemical messages that initiate the start of the feedback mechanism • The hormones travel to their target tissue and initiate a corrective response • In this case, the corrective response is the secretion of more glucose into the bloodstream Requirement of Negative Feedback Control Because mammals are warm blooded, the enzymes that are part of their make-up as a warm blooded animal require a certain temperature to operate optimally.
Approximate Word count = 592
Approximate Pages = 2.4
(250 words per page double spaced)
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