BSC 216 EXAM 1 - 4 QUESTIONS & ANSWERS
The percentage of blood composed of erythrocytes is called - Answer -hematocrit
Which of the following is not one of the functions of blood? - Answer -to protect vital
organs
What percentage of the blood is composed of plasma? - Answer -55%
When blood is centrifuged, what is found in the buffy coat? - Answer -platelets and
leukocytes
Which of the following is considered a normal blood pH? - Answer -7.40
What organ secretes most of the plasma proteins? - Answer -liver
What plasma protein is most important for the blood's colloid osmotic pressure? -
Answer -albumin
What type of plasma protein are antibodies? - Answer -immune proteins (globulins)
The majority of blood is plasma. - Answer -true (55%)
List the steps of erythrocyte death - Answer -1. Erythrocytes become trapped in the
sinusoids of the spleen
2. Spleen macrophages digest erythrocytes
3.Hemoglobin is broken down into amino acids, iron ions, and bilirubin
4.Iron ions and amino acids are recycled and used to make new hemoglobin in red
bone marrow. Bilirubin is sent to the liver for excretion.
List the steps of erythropoiesis - Answer -1. Hemapoetic stem cell
2. Erythrocyte - CFU
3. Proerythroblast
4. Early erythrobrast
5. Late erythroblast
6. Reticulocyte
7. Erythrocyte
Which statement best describes red blood cells? - Answer -Red blood cells possess a
protein known as hemoglobin.
Which of the following is the name given to the union between carbon monoxide and
hemoglobin? - Answer -carboxyhemoglobin
The process of red blood cell production is known as: - Answer -erythropoiesis
,When oxygen concentrations are low in tissues surrounding systemic capillaries,
hemoglobin releases oxygen to become carboxyhemoglobin. - Answer -FALSE
The most common cause of abnormal hemoglobin is an inherited condition known as
sickle-cell anemia. - Answer -TRUE
You are observing a blood slide under the microscope and you see a large cell with a U-
shaped nucleus and light blue cytoplasm. You identify this cell as a - Answer -
Monocyte
White blood cells that have an S-shaped nucleus and large dark-staining granules are
the - Answer -basophils
What is the most common type of leukocyte in a healthy adult? - Answer -Neutrophil
During a tapeworm infection, you would expect to see increased numbers of: - Answer
-eosinophils
All leukocytes arise from: - Answer -hematopoietic stem cells (HSCs)
Select the correct pathway to form a monocyte through the process of leukopoiesis. -
Answer -HSC, myeloid cell line, monoblast, promonocyte, monocyte
The most common leukocyte is the neutrophil while the least common leukocyte is the
basophil. - Answer -True
What feature is shared by platelets and some leukocytes? - Answer -prescence of
granules
Platelets are cell fragments formed from: - Answer -megakaryocytes
Platelets can undergo mitosis and perform repairs if damaged. - Answer -FALSE
In the beginning of of platelet plug formation, the chemical produced by endothelial cells
at the site of injury is called - Answer -von Willebrand factor
The process that converts fibrinogen to fibrin and results in the formation of a more solid
clot is called - Answer -coagulation
The process by which a blood clot dissolves is called - Answer -thrombolysis
The enzyme that coverts fibrinogen to fibrin is - Answer -thrombin
How do vascular spasms contribute to the process of hemostasis? - Answer -vascular
spasms limit blood loss
, Which of the following must occur first during hemostasis? - Answer -formation of
thrombin
The ABO blood group is based on which antigen(s)? - Answer -antigens A and B
During a transfusion, if incompatible antigens are introduced, antibodies can bind to
foreign antigens, causing them to clump together, or: - Answer -agglutinate
Agglutination occurs when blood type B+ receives blood type O in a transfusion. -
Answer -FALSE
Which formed element functions in blood clotting? - Answer -thrombocyte
Which leukocyte increases in number during parasitic infections? - Answer -Eosinophil
What do platelets do to aid coagulation? - Answer -release chemicals that stimulate
clotting
What protein is responsible for tagging foreign particles, pathogens, or blood for
destruction? - Answer -antibodies
What antibodies are present in the plasma of a patient with O+ blood? - Answer -Anti-
A, Anti-B
Patient JT's blood-typing chart showed agglutination only to the anti-B serum. What is
the patient's blood type? - Answer -B-
The heart is situated in the middle of the thoracic cavity in a region known as the: -
Answer -Mediastinum
Both the left and right atria receive blood from: - Answer -Veins
The pulmonary circuit involves blood flow from the heart to the: - Answer -Lungs
The right side of the heart receives: - Answer -deoxygenated blood from the systemic
circuit
The left side of the heart is often called the systemic pump due to blood flow to the
body. - Answer -TRUE
The apex of the heart is - Answer -inferior
The vessels that deliver oxygen to the tissues of the body are part of the - Answer -
systemic circuit
The percentage of blood composed of erythrocytes is called - Answer -hematocrit
Which of the following is not one of the functions of blood? - Answer -to protect vital
organs
What percentage of the blood is composed of plasma? - Answer -55%
When blood is centrifuged, what is found in the buffy coat? - Answer -platelets and
leukocytes
Which of the following is considered a normal blood pH? - Answer -7.40
What organ secretes most of the plasma proteins? - Answer -liver
What plasma protein is most important for the blood's colloid osmotic pressure? -
Answer -albumin
What type of plasma protein are antibodies? - Answer -immune proteins (globulins)
The majority of blood is plasma. - Answer -true (55%)
List the steps of erythrocyte death - Answer -1. Erythrocytes become trapped in the
sinusoids of the spleen
2. Spleen macrophages digest erythrocytes
3.Hemoglobin is broken down into amino acids, iron ions, and bilirubin
4.Iron ions and amino acids are recycled and used to make new hemoglobin in red
bone marrow. Bilirubin is sent to the liver for excretion.
List the steps of erythropoiesis - Answer -1. Hemapoetic stem cell
2. Erythrocyte - CFU
3. Proerythroblast
4. Early erythrobrast
5. Late erythroblast
6. Reticulocyte
7. Erythrocyte
Which statement best describes red blood cells? - Answer -Red blood cells possess a
protein known as hemoglobin.
Which of the following is the name given to the union between carbon monoxide and
hemoglobin? - Answer -carboxyhemoglobin
The process of red blood cell production is known as: - Answer -erythropoiesis
,When oxygen concentrations are low in tissues surrounding systemic capillaries,
hemoglobin releases oxygen to become carboxyhemoglobin. - Answer -FALSE
The most common cause of abnormal hemoglobin is an inherited condition known as
sickle-cell anemia. - Answer -TRUE
You are observing a blood slide under the microscope and you see a large cell with a U-
shaped nucleus and light blue cytoplasm. You identify this cell as a - Answer -
Monocyte
White blood cells that have an S-shaped nucleus and large dark-staining granules are
the - Answer -basophils
What is the most common type of leukocyte in a healthy adult? - Answer -Neutrophil
During a tapeworm infection, you would expect to see increased numbers of: - Answer
-eosinophils
All leukocytes arise from: - Answer -hematopoietic stem cells (HSCs)
Select the correct pathway to form a monocyte through the process of leukopoiesis. -
Answer -HSC, myeloid cell line, monoblast, promonocyte, monocyte
The most common leukocyte is the neutrophil while the least common leukocyte is the
basophil. - Answer -True
What feature is shared by platelets and some leukocytes? - Answer -prescence of
granules
Platelets are cell fragments formed from: - Answer -megakaryocytes
Platelets can undergo mitosis and perform repairs if damaged. - Answer -FALSE
In the beginning of of platelet plug formation, the chemical produced by endothelial cells
at the site of injury is called - Answer -von Willebrand factor
The process that converts fibrinogen to fibrin and results in the formation of a more solid
clot is called - Answer -coagulation
The process by which a blood clot dissolves is called - Answer -thrombolysis
The enzyme that coverts fibrinogen to fibrin is - Answer -thrombin
How do vascular spasms contribute to the process of hemostasis? - Answer -vascular
spasms limit blood loss
, Which of the following must occur first during hemostasis? - Answer -formation of
thrombin
The ABO blood group is based on which antigen(s)? - Answer -antigens A and B
During a transfusion, if incompatible antigens are introduced, antibodies can bind to
foreign antigens, causing them to clump together, or: - Answer -agglutinate
Agglutination occurs when blood type B+ receives blood type O in a transfusion. -
Answer -FALSE
Which formed element functions in blood clotting? - Answer -thrombocyte
Which leukocyte increases in number during parasitic infections? - Answer -Eosinophil
What do platelets do to aid coagulation? - Answer -release chemicals that stimulate
clotting
What protein is responsible for tagging foreign particles, pathogens, or blood for
destruction? - Answer -antibodies
What antibodies are present in the plasma of a patient with O+ blood? - Answer -Anti-
A, Anti-B
Patient JT's blood-typing chart showed agglutination only to the anti-B serum. What is
the patient's blood type? - Answer -B-
The heart is situated in the middle of the thoracic cavity in a region known as the: -
Answer -Mediastinum
Both the left and right atria receive blood from: - Answer -Veins
The pulmonary circuit involves blood flow from the heart to the: - Answer -Lungs
The right side of the heart receives: - Answer -deoxygenated blood from the systemic
circuit
The left side of the heart is often called the systemic pump due to blood flow to the
body. - Answer -TRUE
The apex of the heart is - Answer -inferior
The vessels that deliver oxygen to the tissues of the body are part of the - Answer -
systemic circuit
