A veterinary scientist records the movement of blood through four labelled blood vessels in a rabbit.
| Blood vessel | Observation |
|---|---|
| J | Blood flows from the heart to the muscles of a hind leg. |
| K | Blood flows from the muscles of a hind leg towards the heart. |
| L | Blood passes through an exchange surface within a hind-leg muscle. |
| M | Oxygenated blood flows from the lungs towards the heart. |
Which labelled blood vessel is an artery?
L
K
J
M
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.