Chapter 19 Quiz
Which of the following is NOT true of plasma?
Plasma volume can change drastically.
If a blood buffer is absent, which function of the blood would be compromised?
Regulation of PH
Which of the following events occurs when erythrocytes are destroyed?
The globin portion of the molecule is broken down into amino acids.
A blood clot attached to a blood vessel wall is called a __________?
Thrombus
True or false? The rate of erythropoiesis when erythropoietin is present is greater than the rate of erythropoiesis when erythropoietin is absent
True
Which blood type is considered the universal recipient?
Type AB
Why would a person have anti-Rh antibodies present in their blood?
an Rh-negative woman is carrying an Rh-positive fetus.
Which of the following functions is associated with the blood?
delivery of O2 to tissue cells
Which of the following formed elements do not have chromosomes?
erythrocytes
Low blood oxygen levels stimulate erythrocyte production by increasing the formation of _________________ by the kidneys.
erythropoietin
Hemocytoblasts
give rise to all formed elements in the blood
Billrubin
may build up in the circulation and cause jaundice.
Which of the following is an agranulocyte?
monocyte
Which type of material is NOT transported by the blood?
neurotransmitters
Which of the following phrases is least likely to be used in describing erythrocytes?
nucleus is centrally located
When large quantities of blood are lost, erythrocytes must be replaced to restore
oxygen carrying capacity
The hematocrit is
percentage of blood volume occupied by red blood cells
For a person whose hematocrit is 45%, in which choice below are the components of blood correctly ranked in order of decreasing percent volume?
plasma, RBCs, WBCs
Which blood component is NOT correctly matched with its function?
platelets - phagocytize bacteria
When a blood vessel is damaged, which of the following events occurs last?
platelets begin to stick to each other and form a plug.
A white blood cell engulfing a bacterium is an example of blood functioning in
protection
Functions of plasma proteins include
regulation of osmotic pressure
An increased amount of heparin in the blood might
slow down the clotting process.
An increase in hemoglobin increases
the ability of the blood to carry O2 to various tissues.
Plasma is ____ while formed elements are ____.
the liquid portion of blood; the cells
Agglutination of red blood cells means
they clump together
Each hemoglobin molecule
transports four oxygen molecules
Hemoglobin
transports oxygen
How would a decrease in the number of megakaryocytes affect blood composition?
A decrease in megakaryocytes would decrease the number of platelets in the blood.
A person with an increased eosinophil count might be suffering from __________?
A parasitic worm infection
Iron
Is needed to produce hemoglobin
Which of the following statements regarding leukocytes is true?
Leukocytes are the largest of the formed elements.
Plasma
Liquid part of blood
Mr.Smith moved from a low altitude to a high altitude and experienced an increase in RBC's. What caused the increase?
Lower O2 concentration seen at higher altitudes
Which of the following cell types is incorrectly matched to its description?
Lymphocytes-become macrophages
Mature erythrocytes
contain hemoglobin in their cytoplasm
Which of the following events is one of the three main stages of coagulation?
conversion of fibrinogen to fibrin
Which of the following is the most abundant of the plasma proteins?
Albumin
Healing after clot formation involves
All of these choices are correct.
Which type of gene expression occurs when a person has type AB blood?
Codominance
Rupture of a red blood cell is called hematopoiesis.
False
The plasma component that forms fibrin, the insoluble protein, in a blood clot is __________.
Fibrinogen
The plasma protein component that forms fibrin, the insoluble protein, in a blood clot is __________?
Fibrinogen
Which plasma protein is accurately described?
Globulin-transport and immunity
When the antigens on erythrocytes bind with antibodies in the plasma
agglutination of erythrocytes occurs.
When the antigens on erythrocytes bind with antibodies in the plasma,
agglutination of erythrocytes occurs.
In hemolytic disease of the newborn,
antibodies from the mother cross the placenta and affect the fetus.
When defective erythrocytes are broken down,
bilirubin is formed from the breakdown of hemoglobin
In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in the correct chronological order?
bone marrow; blood vessels; spleen
Fibrinolysis is responsible for
clot dissolution
Which of the following is a stage of hemostasis?
coagulation
The globulins are important plasma proteins that functions primarily in __________.
immunity
Randolf was suffering from severe hepatitis. His skin appeared to be jaundiced. That color change was due to
increased bilirubin in his circulatory system
The only formed elements that possess a nucleus when mature are the __________.
leukocytes
