Fick's law
What Fick's law means in Physical Education A-Level, as defined for AQA.
Definition of Fick's law
Check what you remember
Read the wording for your board, then hide it and explain Fick's law in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The rate of diffusion is proportional to the surface area and the partial-pressure gradient, and inversely proportional to the thickness of the respiratory membrane.
Topics that use Fick's law
- Respiratory system (AQA A-Level)
Related terms
- Airway narrowing
- Alveolar and muscle exchange
- Baroreceptor
- Baroreceptors
- Carbon monoxide, oxygen transport and aerobic capacity
- Chemoreceptor
- Chemoreceptors
- Chemoreceptors and sensory detection
Using Fick's law 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 Physical Education questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge