Cambridge IGCSE Biology
14.4Homeostasis
Homeostasis in Cambridge IGCSE Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic41 practice questions2 lessons
Overview
Core: the meaning of homeostasis and the effect of insulin; everything else is Supplement.
Learning objectives
What the syllabus expects you to be able to do.
- 14.4.1Describe homeostasis and state that insulin decreases blood glucose concentration.
- 14.4.2Supplement: explain negative feedback around a set point, describe the control of blood glucose by the liver, insulin and glucagon, and outline the treatment of Type 1 diabetes.
- 14.4.3Supplement: identify the structures of the skin and describe how body temperature is kept constant by insulation, sweating, shivering, the brain, and vasodilation and vasoconstriction of arterioles supplying skin capillaries.
Lessons
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Homeostasis and blood glucose control
22 min
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Skin and body temperature control
18 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
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