Biology A-Level
ADH
What ADH means in Biology A-Level, as defined for OCR.
Definition of ADH
Check what you remember
Read the wording for your board, then hide it and explain ADH in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Released by the posterior pituitary in response to stimulation by the hypothalamus; increases the permeability of the collecting duct to water by inserting aquaporins.
Topics that use ADH
- Excretion as an example of homeostatic control (OCR A-Level)
Related terms
- Aquaporins
- Blood markers of kidney function
- Deamination and urea
- Dialysis versus transplant as treatments
- Excretion
- Filtration and reabsorption in the nephron
- Homeostasis and the internal environment
- Hormone detection in urine
Using ADH in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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