The blood (AQA GCSE Biology Combined Science): Flashcards
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Practise the cards
10 cards from this deck
What are the four main components of blood?
What are the four main components of blood?
Plasma, red blood cells, white blood cells, platelets
Plasma colour & function
Plasma colour & function
Yellow liquid; transports cells, nutrients & waste products
Main job of red blood cells
Main job of red blood cells
Carry oxygen from lungs to all body parts
Substance in red cells that carries oxygen
Substance in red cells that carries oxygen
Haemoglobin
Benefit of red cells having no nucleus
Benefit of red cells having no nucleus
More space to pack in haemoglobin
Benefit of biconcave disc shape in red cells
Benefit of biconcave disc shape in red cells
Increases surface area for oxygen exchange
Function of phagocytes
Function of phagocytes
Eat up germs by surrounding and destroying them
Lymphocyte function
Lymphocyte function
Make antibodies that stick to germs and help destroy them
Role of platelets when you're cut
Role of platelets when you're cut
Rush to scene and help form blood clot/scab
Blood component % after centrifuging
Blood component % after centrifuging
Plasma 55%, red cells 45%, white cells & platelets <1%