mlh567
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Can’t think of many negative Feedback Mechanisms in AS level biology (AQA), anyone know of any ?
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hydroxide
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(Original post by mlh567)
Can’t think of many negative Feedback Mechanisms in AS level biology (AQA), anyone know of any ?
i don't know the AS biology syllabus, but possibly the regulation of body temperature?
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Jpw1097
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(Original post by mlh567)
Can’t think of many negative Feedback Mechanisms in AS level biology (AQA), anyone know of any ?
Yes, negative feedback mechanisms are everywhere in human biology. Anything hormonal (endocrinology) is regulated by negative feedback, such as the release of thyroid hormones (thyroxine and triiodothyrodine), adrenal hormones (steroids); also body temperature, blood pressure, electrolyte concentrations in the blood (such as sodium, potassium, calcium), plasma osmolality, plasma glucose concentration (a big one in A level biology, I would make sure you know this in detail, so know the actions of insulin and glucagon), blood gas tensions. Negative feedback is central to homeostasis, that is the maintenance of a relatively constant internal environment.
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