Biology A-Level
Ultrafiltration
What Ultrafiltration means in Biology A-Level, as defined for OCR.
Definition of Ultrafiltration
Check what you remember
Read the wording for your board, then hide it and explain Ultrafiltration in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Pressure-driven filtration at the glomerulus that separates small molecules by size and charge, retaining blood cells and large proteins.
Topics that use Ultrafiltration
- 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
- Homeostasis and the internal environment
Using Ultrafiltration 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.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge