Homeostasis Definition
This deep dive covers Homeostasis Definition within Temperature Regulation for GCSE Biology. Topic 5: Temperature Regulation It is section 2 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 13
Practice
12 questions
Recall
12 flashcards
Homeostasis Definition
Homeostasis = the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function, in response to internal and external changes.
What needs to be controlled:
- Body temperature: Enzymes work best at 37°C — too hot they denature, too cold reactions are too slow
- Blood glucose concentration: Cells need glucose for respiration but too much damages cells
- Water levels: Cells need the right amount of water for reactions; maintains osmotic balance
Keep building this topic
Read this section alongside the surrounding pages in Temperature Regulation. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Temperature Regulation
What is the normal core body temperature in humans?
Explain how sweating helps to reduce body temperature.
Quick Recall Flashcards
12 questions on Temperature Regulation — practise free
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