Plasma, red blood cells, white blood cells and platelets.
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What is blood plasma?
Plasma is the liquid part of blood: it carries the blood cells through the blood vessels; it contains many dissolved substances, such as carbon dioxide and glucose.
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What are white blood cells?
White blood cells are larger than red blood cells, and they have a nucleus. All types of white blood cells are part of the immune system, which attacks pathogens in the body.
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What are platelets?
Platelets are fragments of larger cells. They have no nucleus. Their function is to cause blood to clot when a blood vessel has been damaged. The clot blocks the wound and prevents pathogens getting into the blood.
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What are red blood cells?
Red blood cells contain haemoglobin which carries oxygen. The bioconcave shape of a R.B.C means it has a large surface area. This makes it easier for oxygen to diffuse into and out of the cell. This cells has no nucleus; it can carry ore oxygen.
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Other cards in this set
Card 2
Front
What is blood plasma?
Back
Plasma is the liquid part of blood: it carries the blood cells through the blood vessels; it contains many dissolved substances, such as carbon dioxide and glucose.
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