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What is another name for red blood cells
erythrocytes
do red blood cells have a nucleus
no
what kind of shape is a red blood cell
bioncove disk
why is a red blood cellās shape important
it has increased surface area to contain more hemoglobin and have easier diffusion
what is hemoglobin
molecule that binds with oxygen
what is a fun fact about hemoglobin
it is responsible for bloodās red color
what is oxyhemoglobin
oxygen is bound
when oxygen is bound what color is blood
bright red
what is deoxyhemoglobin
no oxygen
what color is blood when there is no oxygen
dark red
what is the process of red blood cell formation called
hematopoiesis
where does hematopoiesis occur
red bone marrow in bones
what is erythropoitin
a hormone that is secreted due to prolonged oxygen deficiency
what secretes erythropoitin
the kidneys
why is B-12 and folic acid needed for RBC production
DNA synthesis for dividing cells
why is iron needed for RBC production
for hemoglobin production
what is anemia
the body had too few red blood cells or hemoglobin
how long does a red blood cell live
120 days
why are red blood cells fragile and easy to break
movement through capillaries
what type of cell is used to destroy old and damaged red blood cells
macrophages
where do macrophages live
the liver
how many parts is hemoglobin broken down in
two parts
what parts is hemoglobin broken down into
heme and globin
what happens to heme as it breaks down
forms iron biliverdin
what happens to old iron
reused for new RBCs or stored in the liver
what happens to biliverdin
converted into yellow pigment and bilirubin
what happens to bilirubin
excreted in bile
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