8/3/25, 8:27 PM Graded Exam 2: Attempt review
Topic 6: Digestive System
Started on Sunday, 3 August 2025, 8:59 PM
State Finished
Completed on Sunday, 3 August 2025, 9:27 PM
Time taken 27 mins 53 secs
Grade 120.00 out of 125.00 (96%)
Question 1
What happens to the three liters of interstitial fluid that are not reabsorbed directly by blood
Correct
vessels?
Mark 5.00 out of
5.00 Select one:
a. Released as sweat
b. Drained by the lymphatic system
c. Excreted by the kidneys
d. Converted into plasma
Question 2
How do mechanisms that prevent the recognition of self-antigens contribute to the maturation of T
Correct
and B cells?
Mark 5.00 out of
5.00 Select one:
a. Facilitating immune memory formation
b. Suppressing autoimmune responses
c. Generates more T cells and B cells to destroy self-antigens
d. Triggering autoimmune diseases
Question 3
Activated B cells, known as , secrete a soluble form of their surface antibodies.
Correct
Mark 5.00 out of Select one:
5.00 a. Plasma cells
b. Memory cells
c. Antigen-presenting cells
d. Helper T cells
Question 4
What is the primary function of the spleen in the immune system, and why is it sometimes referred
Correct
to as the "filter of the blood"?
Mark 5.00 out of
5.00 Select one:
a. The spleen functions as a site of immune responses to blood-borne pathogens, and it is
called the "filter of the blood" because it removes microbes and materials, including dying
red blood cells, from the blood.
b. The spleen primarily produces red blood cells and is called the "filter of the blood" due to its
blood-filtering capabilities.
c. The spleen is responsible for synthesizing antibodies, and it is called the "filter of the blood"
because it filters out immune cells from the bloodstream.
d. The spleen serves as a storage organ for immune memory, and it is called the "filter of the
blood" due to its ability to filter out memory cells.
, 8/3/25, 8:27 PM Graded Exam 2: Attempt review
Question 5
What is the common step in both the alternate and classical pathways of the complement system?
Correct
Mark 5.00 out of Select one:
5.00 a. Splitting of the C3 protein
b. Activation of C5
c. Formation of the membrane-attack complex (MAC)
d. Activation of factor D
Question 6
Which of the following statements is NOT true about IgM antibodies?
Correct
Mark 5.00 out of Select one:
5.00 a. They are the first antibody produced during a primary immune response
b. They are the largest antibody molecule with 10 antigen-binding sites
c. They are effective at activating the complement system and promoting opsonization
d. They are the main antibody found in the blood during secondary immune responses
Question 7
During negative selection in the thymus, T-cells that strongly recognize self-antigens presented by
Correct
MHC molecules are:
Mark 5.00 out of
5.00 Select one:
a. Induced into a state of energy
b. Allowed to mature into functional T-cells
c. Eliminated via apoptosis
d. Not subjected to receptor editing
Question 8
Match the following terms with their corresponding descriptions. Match the following
Correct Terms Description
Mark 5.00 out of 1. Central A. Long-lived B cells that arise from activated B cells and provide a faster and
5.00 tolerance stronger secondary immune response.
2. Peripheral B. The mechanism that eliminates B cells recognizing self-antigens in the bone
tolerance marrow.
3. Plasma cells C. The mechanism that eliminates self-reactive B cells in peripheral tissues.
4. Memory B cells D. Terminally differentiated B cells that secrete large amounts of antibodies.
Select one:
a. 1-B, 2-D, 3-C, 4-A
b. 1-A, 2-C, 3-D, 4-B
c. 1-B, 2-C 3-D, 4-A
d. 1-D, 2-C, 3-B, 4-A
Topic 6: Digestive System
Started on Sunday, 3 August 2025, 8:59 PM
State Finished
Completed on Sunday, 3 August 2025, 9:27 PM
Time taken 27 mins 53 secs
Grade 120.00 out of 125.00 (96%)
Question 1
What happens to the three liters of interstitial fluid that are not reabsorbed directly by blood
Correct
vessels?
Mark 5.00 out of
5.00 Select one:
a. Released as sweat
b. Drained by the lymphatic system
c. Excreted by the kidneys
d. Converted into plasma
Question 2
How do mechanisms that prevent the recognition of self-antigens contribute to the maturation of T
Correct
and B cells?
Mark 5.00 out of
5.00 Select one:
a. Facilitating immune memory formation
b. Suppressing autoimmune responses
c. Generates more T cells and B cells to destroy self-antigens
d. Triggering autoimmune diseases
Question 3
Activated B cells, known as , secrete a soluble form of their surface antibodies.
Correct
Mark 5.00 out of Select one:
5.00 a. Plasma cells
b. Memory cells
c. Antigen-presenting cells
d. Helper T cells
Question 4
What is the primary function of the spleen in the immune system, and why is it sometimes referred
Correct
to as the "filter of the blood"?
Mark 5.00 out of
5.00 Select one:
a. The spleen functions as a site of immune responses to blood-borne pathogens, and it is
called the "filter of the blood" because it removes microbes and materials, including dying
red blood cells, from the blood.
b. The spleen primarily produces red blood cells and is called the "filter of the blood" due to its
blood-filtering capabilities.
c. The spleen is responsible for synthesizing antibodies, and it is called the "filter of the blood"
because it filters out immune cells from the bloodstream.
d. The spleen serves as a storage organ for immune memory, and it is called the "filter of the
blood" due to its ability to filter out memory cells.
, 8/3/25, 8:27 PM Graded Exam 2: Attempt review
Question 5
What is the common step in both the alternate and classical pathways of the complement system?
Correct
Mark 5.00 out of Select one:
5.00 a. Splitting of the C3 protein
b. Activation of C5
c. Formation of the membrane-attack complex (MAC)
d. Activation of factor D
Question 6
Which of the following statements is NOT true about IgM antibodies?
Correct
Mark 5.00 out of Select one:
5.00 a. They are the first antibody produced during a primary immune response
b. They are the largest antibody molecule with 10 antigen-binding sites
c. They are effective at activating the complement system and promoting opsonization
d. They are the main antibody found in the blood during secondary immune responses
Question 7
During negative selection in the thymus, T-cells that strongly recognize self-antigens presented by
Correct
MHC molecules are:
Mark 5.00 out of
5.00 Select one:
a. Induced into a state of energy
b. Allowed to mature into functional T-cells
c. Eliminated via apoptosis
d. Not subjected to receptor editing
Question 8
Match the following terms with their corresponding descriptions. Match the following
Correct Terms Description
Mark 5.00 out of 1. Central A. Long-lived B cells that arise from activated B cells and provide a faster and
5.00 tolerance stronger secondary immune response.
2. Peripheral B. The mechanism that eliminates B cells recognizing self-antigens in the bone
tolerance marrow.
3. Plasma cells C. The mechanism that eliminates self-reactive B cells in peripheral tissues.
4. Memory B cells D. Terminally differentiated B cells that secrete large amounts of antibodies.
Select one:
a. 1-B, 2-D, 3-C, 4-A
b. 1-A, 2-C, 3-D, 4-B
c. 1-B, 2-C 3-D, 4-A
d. 1-D, 2-C, 3-B, 4-A
