Organisms respond to changes in their internal and external environments AQA A2 Biology PART 8 of 9 TOPICS: Control of blood glucose concentration

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Organisms respond to changes in their internal and external
environments (AQA A2 Biology) PART 8 of 9 TOPICS



Control of blood glucose concentration:
Factors that affect glucose concentration are food, medication, activity, biological, environmental and
many more.

Insulin is released from the beta cells of the islets of Langerhans in…

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Type 1/insulin-dependent: This occurs suddenly in childhood. The body is unable to produce
any insulin and is thought to be because the beta cells of the islets of Langerhans in the
pancreas have been targeted by the immune system. The levels of glucose can be controlled
by regular injections with…

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