Veterinary scientists use ultrasound to investigate the two ventricles of a healthy mammal. One ventricle pumps blood to the lungs and the other pumps blood around the rest of the body.
| Ventricle | Wall thickness in mm | Maximum pressure produced in kPa |
|---|---|---|
| X | 5.0 | 3.5 |
| Y | 15.0 | 17.0 |
Explain which ventricle pumps blood around the rest of the body and how the pressure produced by each ventricle is suited to its route.
114 exam-style questions on OCR GCSE Biology 2.2 The challenges of size, covering 2.2.1 Exchange surfaces and surface area : volume ratio, 2.2.2 Substances transported in organisms, 2.2.3 The human circulatory system, 2.2.4 The heart and blood vessels, 2.2.5 Red blood cells and plasma, 2.2.6 Uptake of water and mineral ions by plants, 2.2.7 Transpiration and translocation, 2.2.8 Xylem and phloem, 2.2.9 Environmental factors and water uptake, and 2.2.10 Using a potometer. Each one has a worked solution and a mark scheme showing where the marks go.