ACING BIOS 255 EXAM 4 WITH AN A+ QUESTIONS AND
ANSWERS PLAYBOOK
Whole blood consists of ______.
55% plasma, 45% formed elements
Components of whole blood surrounded by a plasma membrane are more
correctly called formed elements rather than cells is because ______.
platelets consist of plasma membrane-enclosed cytoplasm; each never had its own
nucleus
What is the ground substance of blood?
plasma
Identify the membrane-bound components of whole blood.
Erythrocytes, leukocytes, and platelets
Which component of blood is primarily responsible for its regulatory functions?
plasma
The formed elements in order from most to least abundant per unit of whole
blood are
erythrocytes, platelets, leukocytes
The only formed elements that are nucleated when mature are the ______.
leukocytes
Plasma contains ______ but serum does not.
clotting factors
Identify the types of substances transported by blood.
Metabolic wastes
Hormones
Gases
Nutrients
Blood is classified as ______ tissue.
connective
What types of regulatory functions are performed by blood?
,Regulation of pH of tissue fluid
Regulation of body temperature
Regulation of body fluid levels
______ of plasma is made of plasma proteins.
7%
The liquid portion of whole blood is called
plasma
The category of plasma component LEAST likely, under normal conditions, to be
present in the same amount in interstitial fluid is ______.
protein
Albumin constitutes about ______ of all plasma proteins.
58%
By weight, plasma is approximately ______% protein and 92% water.
7
Which describes both plasma and interstitial fluid?
Both are extracellular fluids.
"The percentage of erythrocytes in whole blood" is the ______ definition of
hematocrit, whereas "the percentage of formed elements in whole blood" is the
______ definition of hematocrit.
clinical, medical dictionary
Mature erythrocytes lack ______.
nucleus
An average of about ______ of erythrocytes are removed from circulation per day.
1%
In order from most to least abundant, the components of plasma are ______.
water, proteins, small solutes and gases
The formed elements that transport respiratory gases are called _______.
erythrocytes
Old and/or damaged erythrocytes are removed from circulation as they pass
through ______.
the liver and spleen
, As they pass through small blood vessels, erythrocytes may pack together,
single-file, like a roll of coins; this formation is called ______.
a rouleau (rouleaux)
Erythrocytes circulate in the bloodstream for approximately ______.
120 days
Electrolytes, nutrients, gases and wastes make up ______ of plasma by weight.
less than 1%
The cells in the organs that remove old and/or damaged erythrocytes are
macrophages
Which of the following poses the greatest risk for severe illness and even death
of an unborn fetus?
Second pregnancy, Rh- mother with second Rh+ fetus
In which portion of a sample of whole blood will you find the antigens that
determine an individual's ABO blood type?
Erythrocytes
How do leukocytes and erythrocytes differ?
Leukocytes defend the body against pathogens, erythrocytes transport respiratory
gases.
Most leukocytes are in tissue spaces, whereas most erythrocytes are in the
bloodstream.
Mature leukocytes have a nucleus but mature erythrocytes do not.
Some leukocytes have granules in their cytoplasm, erythrocytes do not.
To test compatibility of blood types between a donor and a recipient, a specific
blood test called a(n) ______ test must be performed.
agglutination
The process whereby leukocytes are attracted to molecules produced by
damaged or dying cells or by invading pathogens is called ______.
chemotaxis
Administration of ______ to an Rh- mother carrying an Rh+ fetus prevents the
synthesis of anti-D antibodies to Rh+ fetal erythrocytes during pregnancy.
RhoGAM
ANSWERS PLAYBOOK
Whole blood consists of ______.
55% plasma, 45% formed elements
Components of whole blood surrounded by a plasma membrane are more
correctly called formed elements rather than cells is because ______.
platelets consist of plasma membrane-enclosed cytoplasm; each never had its own
nucleus
What is the ground substance of blood?
plasma
Identify the membrane-bound components of whole blood.
Erythrocytes, leukocytes, and platelets
Which component of blood is primarily responsible for its regulatory functions?
plasma
The formed elements in order from most to least abundant per unit of whole
blood are
erythrocytes, platelets, leukocytes
The only formed elements that are nucleated when mature are the ______.
leukocytes
Plasma contains ______ but serum does not.
clotting factors
Identify the types of substances transported by blood.
Metabolic wastes
Hormones
Gases
Nutrients
Blood is classified as ______ tissue.
connective
What types of regulatory functions are performed by blood?
,Regulation of pH of tissue fluid
Regulation of body temperature
Regulation of body fluid levels
______ of plasma is made of plasma proteins.
7%
The liquid portion of whole blood is called
plasma
The category of plasma component LEAST likely, under normal conditions, to be
present in the same amount in interstitial fluid is ______.
protein
Albumin constitutes about ______ of all plasma proteins.
58%
By weight, plasma is approximately ______% protein and 92% water.
7
Which describes both plasma and interstitial fluid?
Both are extracellular fluids.
"The percentage of erythrocytes in whole blood" is the ______ definition of
hematocrit, whereas "the percentage of formed elements in whole blood" is the
______ definition of hematocrit.
clinical, medical dictionary
Mature erythrocytes lack ______.
nucleus
An average of about ______ of erythrocytes are removed from circulation per day.
1%
In order from most to least abundant, the components of plasma are ______.
water, proteins, small solutes and gases
The formed elements that transport respiratory gases are called _______.
erythrocytes
Old and/or damaged erythrocytes are removed from circulation as they pass
through ______.
the liver and spleen
, As they pass through small blood vessels, erythrocytes may pack together,
single-file, like a roll of coins; this formation is called ______.
a rouleau (rouleaux)
Erythrocytes circulate in the bloodstream for approximately ______.
120 days
Electrolytes, nutrients, gases and wastes make up ______ of plasma by weight.
less than 1%
The cells in the organs that remove old and/or damaged erythrocytes are
macrophages
Which of the following poses the greatest risk for severe illness and even death
of an unborn fetus?
Second pregnancy, Rh- mother with second Rh+ fetus
In which portion of a sample of whole blood will you find the antigens that
determine an individual's ABO blood type?
Erythrocytes
How do leukocytes and erythrocytes differ?
Leukocytes defend the body against pathogens, erythrocytes transport respiratory
gases.
Most leukocytes are in tissue spaces, whereas most erythrocytes are in the
bloodstream.
Mature leukocytes have a nucleus but mature erythrocytes do not.
Some leukocytes have granules in their cytoplasm, erythrocytes do not.
To test compatibility of blood types between a donor and a recipient, a specific
blood test called a(n) ______ test must be performed.
agglutination
The process whereby leukocytes are attracted to molecules produced by
damaged or dying cells or by invading pathogens is called ______.
chemotaxis
Administration of ______ to an Rh- mother carrying an Rh+ fetus prevents the
synthesis of anti-D antibodies to Rh+ fetal erythrocytes during pregnancy.
RhoGAM
