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(Biology GCSE) How does the body control blood glucose concentration?

You body controls blood glucose concentration via the pancreas, one of the organs in your body (located in the lower abdomen and is feather-shaped). If the blood glucose concentration is too high, the pancreas produces and releases the hormone insulin into the bloodstream; from the bloodstream, it travels to different target cells such as those in muscle and liver tissue. It causes the excess glucose to be converted into glycogen (storage carbohydrate).

If the blood glucose concentration becomes too low, then the pancreas can produce and release a different hormone called glucagon. This causes glycogen to be converted back into glucose to raise the concentration. Overall, insulin and glucagon work to control the blood glucose levels. The mechanism is one example of negative feedback (where if something deviates too much from the normal then your body tries to correct it). Depending on your syllabus, you may also learn about the two types of diabetes, a condition where people are unable to control their blood glucose concentration.

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