blood cells Flashcards
what colour is plasma?
pale-yellowish liquid
what 2 proteins does plasma contain?
fibrinogen , prothrombin
plasma is 70% …
H2O
what 4 nutrients does plasma contain?
glucose , amino acids, fats, vitamins
what 2 wastes does plasma contain?
uric acid , urea
plasma is 55% …
blood
what shape does a red blood cell take
biconcave shape
why does the red blood cell have an abnormal shape?
it increases SA : VOL , helps O2 to be taken ina dn released faster
what does red blood cell contain?
haemoglobin
what is the use of the haemoglobin
it binds O2 , gives the RBC its red colour
what part of the cell does red blood cell not have?
nucleus
why does red blood cell have no nucleus?
frees up more space to pack more haemoglobin
why is red blood cell elastic?
it allows RBC to squeeze through tiny blood capillaries
what two cells are white blood cells?
lymphocytes , phagocytes
what nucleus does lymphocyte have?
large, rounded nucleus
what nucleus does phagocyte have?
lobed nucleus
lymphocyte has a … cytoplasm
non-granular cytoplasm
phagocyte has a … cytoplasm
granular
lymphocytes’ role:
anti-bodies against microorganisms
phagocytes’ role:
engulfs and ingests foreign particles
why are platelets not true cells?
they are membrane-bound fragments of cytoplasm
platelets role:
clotting of blood
BCP: 1. damaged tissue and platelets –> …
thrombokinase
BCP 2. thrombokinase –> …
prothrombin
