Blood and Blood Vessels 4.5 / 5 based on 3 ratings ? ScienceBiologyGCSEAQA Created by: emma.revise26Created on: 17-06-18 21:46 Pale yellow fluid that transports carbon dioxide, hormones and waste Plasma 1 of 7 Has a large surface area, no nucleus and full of haemoglobin. It carries oxygen Red blood cell 2 of 7 They are part of the immune system. Some produce antibodies and others surround and engulf pathogens White blood cell 3 of 7 Fragments of cells. They clump together to form blood clots Platelets 4 of 7 They have thick muscular walls, small lumen and carry blood away from the heart Artery 5 of 7 They have thin walls, large lumen, have valves to stop blood flowing in the wrong direction and carry blood to the heart Vein 6 of 7 They are one cell thick to allow diffusion and connect arteries and veins Capillary 7 of 7
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