double circulation
What double circulation means in Biology A-Level, as defined for AQA, OCR.
Definitions of double circulation
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain double circulation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The pathway in which blood is traced through the right side to the lungs and the left side to the body.
Blood passes through the heart twice for every complete circuit of the body.
Topics that use double circulation
- Mass transport in animals (AQA A-Level)
- Transport in animals (OCR A-Level)
Related terms
- cooperative binding
- pulmonary and systemic circuits
- affinity
- affinity for oxygen
- Association and dissociation of oxygen
- atrial systole
- Atrioventricular valves
- biconcave disc
Using double circulation 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.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge