BIO 215 test 1 UPDATED Exam Questions
and CORRECT Answers
what is the main role of the cardiovascular system? - CORRECT ANSWER - transporting
nutrients, proteins, hormones etc.
how does the cardiovascular system transport things? - CORRECT ANSWER - - transport
medium (blood)
- pump (heart)
- transport conduits (vessels)
what is the first system to develop and why? - CORRECT ANSWER - the cardiovascular
system because it is the building block to sustain the life of a fetus for the first few months
when do fetal heart cells begin beating rhythmically? - CORRECT ANSWER - 16 weeks
post conception
example of fluid connective tissue - CORRECT ANSWER - whole blood
blood functions - CORRECT ANSWER - - transporting dissolved gases, nutrients,
hormones, proteins etc.
- regulate pH
- coagulation
- defend body against pathogens and toxins
- regulating body temp by absorbing and redistributing heat
example of a colloid - CORRECT ANSWER - blood plasma
what is a solution containing suspended particles that don't settle out - CORRECT
ANSWER - colloid
,hematocrit/PVC definition - CORRECT ANSWER - separating blood components and
measuring the % of formed elements
what is normal hematocrit? - CORRECT ANSWER - 40-60% PVC
what hematocrit level is considered anemic? - CORRECT ANSWER - 35%
what is plasma composed of? - CORRECT ANSWER - mostly water, a significant amount
of proteins, and some other solutes
how does dehydration simulate polycythemia? - CORRECT ANSWER - there is not an
increase of blood cells but the plasma/blood ratio is thrown of resulting in polycythemia-like
issues
does whole blood have different properties in different parts of the body? - CORRECT
ANSWER - no, it has roughly the same overall properties
blood plasma is how much of blood volume? - CORRECT ANSWER - 40-60%
what has a higher concentration of dissolved O2 and dissolved proteins? blood plasma or
interstitial fluid - CORRECT ANSWER - blood plasma
interstitial fluid definition - CORRECT ANSWER - fluid outside of cells/non membrane
bound fluid
where are more than 90% of blood plasma proteins synthesized? - CORRECT ANSWER -
the liver
what is 92% water? - CORRECT ANSWER - blood plasma
, what are the three major classes of plasma proteins? - CORRECT ANSWER - albumins,
globulins, fibrinogen
Albumins make up what percentage of plasma proteins? - CORRECT ANSWER - 60%
what are albumins responsible for? - CORRECT ANSWER - viscosity and osmotic
pressure of blood
what blood plasma protein transports fatty acids and lipid soluble comounds? - CORRECT
ANSWER - albumins
Globulins make up what percent of plasma proteins? - CORRECT ANSWER - 35%
large function of globulins - CORRECT ANSWER - immunoglobulins (antibodies) which
attack foreign proteins and pathogens
globulins include what that bind ions, hormones, and other compounds - CORRECT
ANSWER - transport globulins
fibrinogen make up what percent of plasma proteins? - CORRECT ANSWER - 4%
what happens to fibrinogen during blood clotting? - CORRECT ANSWER - it is converted
into fibrin
what happens when fibrinogen is removed from the blood? - CORRECT ANSWER - the
plasma leaves serum
What are the blood circuits? - CORRECT ANSWER - cardiovascular circuit, pulmonary
circuit, and systemic circuit
and CORRECT Answers
what is the main role of the cardiovascular system? - CORRECT ANSWER - transporting
nutrients, proteins, hormones etc.
how does the cardiovascular system transport things? - CORRECT ANSWER - - transport
medium (blood)
- pump (heart)
- transport conduits (vessels)
what is the first system to develop and why? - CORRECT ANSWER - the cardiovascular
system because it is the building block to sustain the life of a fetus for the first few months
when do fetal heart cells begin beating rhythmically? - CORRECT ANSWER - 16 weeks
post conception
example of fluid connective tissue - CORRECT ANSWER - whole blood
blood functions - CORRECT ANSWER - - transporting dissolved gases, nutrients,
hormones, proteins etc.
- regulate pH
- coagulation
- defend body against pathogens and toxins
- regulating body temp by absorbing and redistributing heat
example of a colloid - CORRECT ANSWER - blood plasma
what is a solution containing suspended particles that don't settle out - CORRECT
ANSWER - colloid
,hematocrit/PVC definition - CORRECT ANSWER - separating blood components and
measuring the % of formed elements
what is normal hematocrit? - CORRECT ANSWER - 40-60% PVC
what hematocrit level is considered anemic? - CORRECT ANSWER - 35%
what is plasma composed of? - CORRECT ANSWER - mostly water, a significant amount
of proteins, and some other solutes
how does dehydration simulate polycythemia? - CORRECT ANSWER - there is not an
increase of blood cells but the plasma/blood ratio is thrown of resulting in polycythemia-like
issues
does whole blood have different properties in different parts of the body? - CORRECT
ANSWER - no, it has roughly the same overall properties
blood plasma is how much of blood volume? - CORRECT ANSWER - 40-60%
what has a higher concentration of dissolved O2 and dissolved proteins? blood plasma or
interstitial fluid - CORRECT ANSWER - blood plasma
interstitial fluid definition - CORRECT ANSWER - fluid outside of cells/non membrane
bound fluid
where are more than 90% of blood plasma proteins synthesized? - CORRECT ANSWER -
the liver
what is 92% water? - CORRECT ANSWER - blood plasma
, what are the three major classes of plasma proteins? - CORRECT ANSWER - albumins,
globulins, fibrinogen
Albumins make up what percentage of plasma proteins? - CORRECT ANSWER - 60%
what are albumins responsible for? - CORRECT ANSWER - viscosity and osmotic
pressure of blood
what blood plasma protein transports fatty acids and lipid soluble comounds? - CORRECT
ANSWER - albumins
Globulins make up what percent of plasma proteins? - CORRECT ANSWER - 35%
large function of globulins - CORRECT ANSWER - immunoglobulins (antibodies) which
attack foreign proteins and pathogens
globulins include what that bind ions, hormones, and other compounds - CORRECT
ANSWER - transport globulins
fibrinogen make up what percent of plasma proteins? - CORRECT ANSWER - 4%
what happens to fibrinogen during blood clotting? - CORRECT ANSWER - it is converted
into fibrin
what happens when fibrinogen is removed from the blood? - CORRECT ANSWER - the
plasma leaves serum
What are the blood circuits? - CORRECT ANSWER - cardiovascular circuit, pulmonary
circuit, and systemic circuit
