Biology A-Level
Homeostasis and the internal environment
What Homeostasis and the internal environment means in Biology A-Level, as defined for OCR.
Definition of Homeostasis and the internal environment
Check what you remember
Read the wording for your board, then hide it and explain Homeostasis and the internal environment in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Keeping the internal environment within limits so enzymes and cells function, helped by removing wastes that disturb pH or solute balance.
Topics that use Homeostasis and the internal environment
- Excretion as an example of homeostatic control (OCR A-Level)
Related terms
- ADH
- Aquaporins
- Blood markers of kidney function
- Deamination and urea
- Dialysis versus transplant as treatments
- Excretion
- Filtration and reabsorption in the nephron
- Hormone detection in urine
Using Homeostasis and the internal environment in the exam
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