Biology - How the Kidneys Work - (Kidneys Part 1/3) #27
By CognitoFrom BoclipsOctober 1, 2025
This video covers:
- The 3 main functions of the kidneys:
1) removing waste,
2) regulating levels of ions, and
3) regulating levels of water
- How the kidneys can achieve all of this using filtration and selective reabsorption
- How anti-diuretic hormone (ADH) is used to control water levels
Exam board specific info:
AQA - Separate science only. The ADH part is higher tier only.
IGCSE - Separate science only
Edexcel - Separate science only. The ADH part is higher tier only.
OCR 21st Century - Separate science only. The ADH part is higher tier only.
OCR Gateway - Separate science only. The ADH part is higher tier only.
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