The mammalian circulatory system is highly specialized for the transport of materials and protection against disease.
Complete the table by giving the missing information for (i), (ii), (iii), (iv), and (v).
| Component of Blood | Primary Function |
|---|---|
| (i) | Liquid matrix transporting waste products, chemical messengers, and thermal energy |
| Lymphocytes | (ii) |
| (iii) | Release chemicals to initiate the cascade that forms a fibrin clot at wound sites |
| Red blood cells | (iv) |
| Phagocytes | (v) |
Describe the structural differences between arteries and veins that adapt them to their respective roles in the transport of blood.
55 exam-style questions on Edexcel IGCSE Biology Transport. Each one has a worked solution and a mark scheme showing where the marks go.