How Is Blood Sugar Regulated By Negative Feedback

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Blood Sugar Regulation

Ball-and-stick model of a glucose molecule Blood sugar regulation is the process by which the levels of blood sugar, primarily glucose, are maintained by the body within a narrow range. This tight regulation is referred to as glucose homeostasis. Insulin, which lowers blood sugar, and glucagon, which raises it, are the most well known of the hormones involved, but more recent discoveries of other glucoregulatory hormones have expanded the understanding of this process.[1] Mechanisms[edit] Blood sugar regulation the flatline is the level needed the sine wave the fluctuations. Blood sugar levels are regulated by negative feedback in order to keep the body in balance. The levels of glucose in the blood are monitored by many tissues, but the cells in the pancreatic islets are among the most well understood and important. Glucagon[edit] If the blood glucose level falls to dangerous levels (as during very heavy exercise or lack of food for extended periods), the alpha cells of the pancreas release glucagon, a hormone whose effects on liver cells act to increase blood glucose levels. They convert glycogen into glucose (this process is called glycogenolysis). The glucose is released into t Continue reading >>

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  1. Sheila

    kinda in a rush, so i cant describe it, but the menstrual cycle is an example of a positive feed back cycle. If you need negative ones there are a bunch in digestion. Enzymes are very complex and have bonding sites that will only fit with certain molecules. Hormones are often specific to enzymes, enabling or disabling them. Sorry I cant be of more help hopefully this jogs someone's memory and they can be more descriptive.

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