Exam (elaborations)
BIOS255 EXAM 1 - QS And As - CHAMBERLAIN
BIOS255 EXAM 1 - QS And As - CHAMBERLAIN
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BIOS255 EXAM 1 - QS And As - CHAMBERLAINPlasma consists of ✔️Ans - water, proteins, nutrients, hormones, oxygen,
carbon dioxide, electrolytes
plasma is ___ percent of blood ✔️Ans - 55%
buffy coat ✔️Ans - composed of white blood cells and platelets
Viscosity ✔️Ans - resistance of fluid to flow
osmolarity ✔️Ans - dissolved particles in the blood that cannot pass
through the blood vessel wall
If you need to examine antibodies against a virus in a patient, which part of
the blood will you need? ✔️Ans - plasma
albumin ✔️Ans - smallest and most abundant plasma protein
viscosity and osmolarity
what do albumins influence ✔️Ans - blood pressure, flow, and fluid
balance
globulins ✔️Ans - alpha, beta, gamma
provide immune system functions
fibrinogen ✔️Ans - help form blood clots
RBCs (erythrocytes) count ✔️Ans - 4.2-6.2 million uL
WBCs (leukocytes) count ✔️Ans - 5000-10,000 uL
platelet count ✔️Ans - 130,000-360,000/uL
A normal hematocrit is ___ of the total blood volume ✔️Ans - 37-52%
The myeoblast cell line gives rise to which mature blood cells? ✔️Ans -
Neutrophils and basophils
, Where does hematopoiesis take place in adults? ✔️Ans - red bone marrow
The biconcave formed elements that lack mitochondria and a nucleus are
called ✔️Ans - red blood cells
Why do red blood cells have a biconcave shape? ✔️Ans - allows to carry
oxygen efficiently
red blood cells are formed in the ✔️Ans - red bone marrow
to make an RBC you need ✔️Ans - EPO; amino acids; iron; vitamin B12
hemoglobin is made up of ✔️Ans - 2 alpha and 2 beta
heme and globin
iron in the center of hemoglobin helps to beind ✔️Ans - molecular oxygen
hemoglobin function ✔️Ans - regulates blood flow and pressure
Polycythemia ✔️Ans - excess of RBC
anemia ✔️Ans - too few RBC
sickle cell disease ✔️Ans - Genetic disorder in which red blood cells have
abnormal hemoglobin molecules and take on an abnormal shape.
where are antigens found ✔️Ans - found on surface of RBC
antibodies ✔️Ans - carried in plasma
blood type A ✔️Ans - antigen A and anti-B antibodies
blood type B ✔️Ans - antigen B and anti-A antibodies
blood type AB ✔️Ans - both antigen AB, not antibodies
blood type O ✔️Ans - no antigens, anti A and B antibodies
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