Biology A-Level
Aquaporins
What Aquaporins means in Biology A-Level, as defined for AQA, OCR.
Definitions of Aquaporins
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Reference: OCR
Inserted by ADH to increase the permeability of the collecting duct to water, so more water is reabsorbed by osmosis.
Contained in vesicles that fuse with the membrane, increasing membrane permeability to water.
Topics that use Aquaporins
- Control of blood water potential (A-level only) (AQA A-Level)
- Excretion as an example of homeostatic control (OCR A-Level)
Related terms
- osmoreceptors
- Osmoregulation
- ADH
- Blood markers of kidney function
- Deamination and urea
- Dialysis versus transplant as treatments
- Excretion
- Filtration and reabsorption in the nephron
Using Aquaporins in the exam
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