Blood (time to become a vampire) Flashcards
What is haemotology
study of iron (blood)
How many litres of blood does a 70kg person have
5
What is the difference between man and woman in blood
man have more cell
how long does red blood cells last
3 months
What is serum
clotted blood
What is the layers of centrifuged blood
plasma (light), buffy coat (middle), red blood cells (heavy)
what is in the buffy coat
white blood cells
What is plasma made of
proteins, salts, nutrients, wastes and dissolved gases
what is the blood buffer
same as yr12chem ocean buffer, carbonate
what is diaminomethanal
urea
What does plasma do
Carries lipids, steroids, buffers ph, colloidal osmotic presssure
What do red blood cells look like
truck tyre
why do they look like truck tyres
to push them through capillaries
What is haematopoiesis
What is used to produce blood
Wjhat happen during gestation
blood produced by egg cells and liver
what happens during life
youi produce blood through bones
What are haematopoietic stem cells
They are cells that produce blood cells, produced through bone marrow
What do we become if we do the lymphoid path
B cell or t cells
What are the two initial paths of the stem cells
lymphoid and myeloi
What is the erythrocyte line
the line where we can either become erythrocytes or megacaryocytes which blow into platelets
What is the granulocyte lineage
where you can become a granulocyte and monocyte
What are platelets
they fill in gaps of blood,which forms a thrombus. This releases a fibrin protein
How long do platelets live
9 days
What are white blood cells
granulocytes and monocytes
What are the neutrophil cells
anti bacteria cells
what are monocytes
anti viral cells which become macrophages when they reach a damaged cell
what are eosinophils
anti parasitic cells, which releases oxidants
what are the basophils
the on switch, it also triggers allergies
What are the granulocytes
neutrophils, eosinophils and basophils
What are the b lymphocytes
make antibodies
what are the t cells
kill invading cells in lymphatic system
what is special about the red blood cell
no nucleus
What does haemoglobin do
dissolve oxygen and transport CO2
What catylyses the buffer reaction
carbonic anhydrade
What is the haem in haemoglobin
protoporphyrin molecule
what is the globin in haemoglobin
proteins that bind
What is the difference between young and old cells
how much osmotic stress there is
How long does it take for a hemocytoblast to become an endocye and what is the process
becomes a proerythroblast, then an early erythroblast then a late erythroblast then a normoblact then a reticuloblast then an erythrocyte over 17 days
How regulated are red blood cells
very, too few = hypoxia, too many = too viscous and you could die
what is epo
a hormone in response to hypoxia which produces red blood cells
How many red blood cells do we have
5 trillion cells per litre and 150g/l haemoglobin and 0.45 percent haematocrit
