Biology GCSE
Excretion and homeostasis
What Excretion and homeostasis means in Biology GCSE, as defined for AQA.
Definition of Excretion and homeostasis
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Reference: AQA
The kidneys are the main organ for controlling water, ion and urea balance, adjusting the volume and concentration of urine to help maintain balance.
Topics that use Excretion and homeostasis
Related terms
- Ammonia
- Composition of blood plasma and urine
- Consequences of imbalance
- Data interpretation from tables and bar charts
- Deamination
- Effector
- excretion
- Filtration
Using Excretion and homeostasis in the exam
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