The composition of blood 0.0 / 5 ? BiologyCirculationGCSEAQA Created by: Former MemberCreated on: 05-12-13 21:38 What parts make up blood? Red blood cells, white blood cells, plasma and platelets 1 of 6 What shape are red blood cells and why? Biconcave disk - Allowing a bigger surface area to volume ratio for more diffusion on oxygen can happen 2 of 6 Why is there no nucleus in red blood cells? So there is space for more haemoglobin (Which combines with oxygen to make oxyhaemoglobin) 3 of 6 What do white blood cells do? Fight bacteria by making antibodies and platelets in cells help to clot blood an reduce blood loss 4 of 6 What does plasma liquid contain? Dissolved CO2, Waste from breajdown of amino acids in liver (Urea) 5 of 6 What is a stent? Small tube made of wire mesh that helps to open up arteries to prevent blockages 6 of 6
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