the blood Flashcards
what does blood consist of
plasma
what is in blood plasma
white blood cells, red blood cells and platelets
blood plasma transports
CO2 from the organs to the lungs
soluble products of digestion from the s.intestine to other organs
urea from the liver to the kidneys
what doe red blood cells transport
oxygen from the lungs to the organs
red blood cells have no what?
nucleus
why do red blood cells have no nucleus?
so they can hold more oxygen
what is the red pigment in red blood cells called
haemoglobin
in the lungs what happens to the haemoglobin
it combines with oxygen to make oxyhemoglobin
why do white blood cells have a nucleus
they are part of the bodies defence system against pathogens and microorganisms
what are platelets
small fragments of cells with no nucleus
job of platelets
help blood to clot at the site of a wound
what is blood
a tissue
