7/29/25, 2:51 PM Graded Exam 1
Topic 3: Cardiovascular System: Blood Vessels and Circulation
Started on Tuesday, July 29, 2025, 3:00 PM
State Finished
Completed on Tuesday, July 29, 2025, 3:51 PM
Time taken 51 mins 43 secs
Grade 120.00 out of 125.00 (96%)
Question 1
What is the primary function of blood?
Correct
5.00 points out Select one:
of 5.00 a. To circulate air in the lungs
b. To digest food
c. To produce hormones
d. To deliver oxygen and nutrients to cells and remove wastes
Question 2
What is the unique shape of red blood cells that increases their surface area for
Correct exchange?
5.00 points out
of 5.00 Select one:
a. Biconcave
b. Cuboidal
c. Spherical
d. Irregular
Question 3
What is another term for the extrinsic pathway in blood clotting?
Correct
5.00 points out Select one:
of 5.00 a. Tissue Factor Pathway
b. Swift Pathway
c. Contact Activation Pathway
d. Tissue Activation Pathway
Question 4
Which cells secrete cytokines, such as colony-stimulating factors (CSFs) and int
Correct the context of hemopoiesis?
5.00 points out
of 5.00 Select one:
a. Muscle cells (fibroblasts)
b. Liver cells
c. White blood cells (leukocytes)
d. Pancreatic cells
, 7/29/25, 2:51 PM Graded Exam 1
Question 5
What happens to the globin component of degraded erythrocytes, and how is it utilized in the body?
Correct
5.00 points out Select one:
of 5.00 a. Globin forms stercobilin and is eliminated in feces.
b. Globin is converted into bilirubin and transported to the liver.
c. Globin is broken down into amino acids and may be used in the production of new
erythrocytes.
d. Globin is stored in the liver in the form of ferritin.
Question 6
What is the lifespan of platelets, and what happens to megakaryocyte remnants after platelet
Correct release?
5.00 points out
of 5.00 Select one:
a. Platelets have a lifespan of about 30 days, and megakaryocyte remnants are consumed by
macrophages.
b. Platelets have a lifespan of around 10 days, and megakaryocyte remnants, little more
than a cell nucleus, are consumed by macrophages.
c. Platelets have a lifespan of approximately 1 week, and megakaryocyte remnants form
platelet-precursor extensions.
d. Platelets have a lifespan of 2-4 days, and megakaryocyte remnants contribute to the
formation of blood clots.
Question 7
Match the following stem cells with their corresponding capabilities:
Incorrect
0.00 points out Stem Cell Capability
of 5.00 1. Totipotent Stem A. Generates all human body
Cell cell types.
2. Pluripotent B. Originates all blood
Stem Cell elements.
3. Mesenchymal C. Develop connective tissues
Stem Cell exclusively.
4. Hematopoietic D. Produces various body cell
Stem Cell types and fetal membranes.
Select one:
a. 1-A, 2-D, 3-B, 4-C
b. 1-A, 2-C, 3-D, 4-B
c. 1-A, 2-D, 3-C, 4-B
d. 1-D, 2-A, 3-C, 4-B
Question 8
In the Rh blood group system context, what is the significance of the Rh D antigen, and how does it
Correct relate to an individual's Rh status?
5.00 points out
of 5.00
I. Rh D antigen determines the ABO blood type.
II. Rh D antigen is found only in individuals with ABO blood type O.
III. Rh D antigen determines whether an individual is Rh positive (Rh+) or Rh negative (Rh−).
IV. Rh D antigen is exclusive to individuals with ABO blood type AB.
Select one:
a. III
b. I and IV
c. I
d. II and III
Topic 3: Cardiovascular System: Blood Vessels and Circulation
Started on Tuesday, July 29, 2025, 3:00 PM
State Finished
Completed on Tuesday, July 29, 2025, 3:51 PM
Time taken 51 mins 43 secs
Grade 120.00 out of 125.00 (96%)
Question 1
What is the primary function of blood?
Correct
5.00 points out Select one:
of 5.00 a. To circulate air in the lungs
b. To digest food
c. To produce hormones
d. To deliver oxygen and nutrients to cells and remove wastes
Question 2
What is the unique shape of red blood cells that increases their surface area for
Correct exchange?
5.00 points out
of 5.00 Select one:
a. Biconcave
b. Cuboidal
c. Spherical
d. Irregular
Question 3
What is another term for the extrinsic pathway in blood clotting?
Correct
5.00 points out Select one:
of 5.00 a. Tissue Factor Pathway
b. Swift Pathway
c. Contact Activation Pathway
d. Tissue Activation Pathway
Question 4
Which cells secrete cytokines, such as colony-stimulating factors (CSFs) and int
Correct the context of hemopoiesis?
5.00 points out
of 5.00 Select one:
a. Muscle cells (fibroblasts)
b. Liver cells
c. White blood cells (leukocytes)
d. Pancreatic cells
, 7/29/25, 2:51 PM Graded Exam 1
Question 5
What happens to the globin component of degraded erythrocytes, and how is it utilized in the body?
Correct
5.00 points out Select one:
of 5.00 a. Globin forms stercobilin and is eliminated in feces.
b. Globin is converted into bilirubin and transported to the liver.
c. Globin is broken down into amino acids and may be used in the production of new
erythrocytes.
d. Globin is stored in the liver in the form of ferritin.
Question 6
What is the lifespan of platelets, and what happens to megakaryocyte remnants after platelet
Correct release?
5.00 points out
of 5.00 Select one:
a. Platelets have a lifespan of about 30 days, and megakaryocyte remnants are consumed by
macrophages.
b. Platelets have a lifespan of around 10 days, and megakaryocyte remnants, little more
than a cell nucleus, are consumed by macrophages.
c. Platelets have a lifespan of approximately 1 week, and megakaryocyte remnants form
platelet-precursor extensions.
d. Platelets have a lifespan of 2-4 days, and megakaryocyte remnants contribute to the
formation of blood clots.
Question 7
Match the following stem cells with their corresponding capabilities:
Incorrect
0.00 points out Stem Cell Capability
of 5.00 1. Totipotent Stem A. Generates all human body
Cell cell types.
2. Pluripotent B. Originates all blood
Stem Cell elements.
3. Mesenchymal C. Develop connective tissues
Stem Cell exclusively.
4. Hematopoietic D. Produces various body cell
Stem Cell types and fetal membranes.
Select one:
a. 1-A, 2-D, 3-B, 4-C
b. 1-A, 2-C, 3-D, 4-B
c. 1-A, 2-D, 3-C, 4-B
d. 1-D, 2-A, 3-C, 4-B
Question 8
In the Rh blood group system context, what is the significance of the Rh D antigen, and how does it
Correct relate to an individual's Rh status?
5.00 points out
of 5.00
I. Rh D antigen determines the ABO blood type.
II. Rh D antigen is found only in individuals with ABO blood type O.
III. Rh D antigen determines whether an individual is Rh positive (Rh+) or Rh negative (Rh−).
IV. Rh D antigen is exclusive to individuals with ABO blood type AB.
Select one:
a. III
b. I and IV
c. I
d. II and III
