HSS 1100 MIDTERM 1 |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Which of the following is characteristic of complete antigens?
a) small molecules
b) contain many repeating chemical units
c) reactivity with an antibody
d) inhibit production of antibodies
CORRECT ANSWER
c) reactivity with an antibody
Question 2
Which of the following inflammatory chemicals is/are released by mast cells?
a) histamine
b) prostaglandins
c) kinins
d) complement
CORRECT ANSWER
a) histamine
Question 3
1
,Binding of an eosinophil to an antibody-coated parasitic worm involves binding of the
antibody's stem region to a(n) ______.
a) antigen-binding site on the eosinophil plasma membrane
b) plasma membrane protein on the eosinophil's surface
c) plasma membrane protein on the worm's surface
d) antigen-binding site on a worm cell's plasma membrane
CORRECT ANSWER
b) plasma membrane protein on the eosinophil's surface
Question 4
Immunocompetence ________.
a) occurs in one specific organ of the adaptive immune system
b) prevents intercellular communication so that only specific cell types respond to the
invader
c) requires exposure to an antigen
d) is the ability of individual cells to recognize a specific antigen by binding to it
CORRECT ANSWER
d) is the ability of individual cells to recognize a specific antigen by binding to it
Question 5
Which mechanism(s) of antibody action result(s) in cell lysis?
a) agglutination
b) neutralization
2
,c) precipitation
d) complement activation
CORRECT ANSWER
d) complement activation
Question 6
Natural killer cells destroy target cells or pathogens by ingestion and destruction of
particulate matter in a process called phagocytosis.
True OR False
CORRECT ANSWER
False
Question 7
Function of regulatory T cell
CORRECT ANSWER
Slows or stops the immune response
Question 8
Memory cell
CORRECT ANSWER
Enables quick and efficient response to secondary exposure to antigen
3
, Question 9
Helper T cell
CORRECT ANSWER
Absence results in no immune response
Question 10
Cytotoxic T cell
CORRECT ANSWER
Kills cancer cells and virus infected body cells
Question 11
B cell
CORRECT ANSWER
Forms antibody producing cells
Question 12
Which of the following best illustrates artificially acquired active humoral immunity?
a) infection
b) antivenoms
c) vaccines
d) antibodies received in breast milk
CORRECT ANSWER
c) vaccines
4
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Which of the following is characteristic of complete antigens?
a) small molecules
b) contain many repeating chemical units
c) reactivity with an antibody
d) inhibit production of antibodies
CORRECT ANSWER
c) reactivity with an antibody
Question 2
Which of the following inflammatory chemicals is/are released by mast cells?
a) histamine
b) prostaglandins
c) kinins
d) complement
CORRECT ANSWER
a) histamine
Question 3
1
,Binding of an eosinophil to an antibody-coated parasitic worm involves binding of the
antibody's stem region to a(n) ______.
a) antigen-binding site on the eosinophil plasma membrane
b) plasma membrane protein on the eosinophil's surface
c) plasma membrane protein on the worm's surface
d) antigen-binding site on a worm cell's plasma membrane
CORRECT ANSWER
b) plasma membrane protein on the eosinophil's surface
Question 4
Immunocompetence ________.
a) occurs in one specific organ of the adaptive immune system
b) prevents intercellular communication so that only specific cell types respond to the
invader
c) requires exposure to an antigen
d) is the ability of individual cells to recognize a specific antigen by binding to it
CORRECT ANSWER
d) is the ability of individual cells to recognize a specific antigen by binding to it
Question 5
Which mechanism(s) of antibody action result(s) in cell lysis?
a) agglutination
b) neutralization
2
,c) precipitation
d) complement activation
CORRECT ANSWER
d) complement activation
Question 6
Natural killer cells destroy target cells or pathogens by ingestion and destruction of
particulate matter in a process called phagocytosis.
True OR False
CORRECT ANSWER
False
Question 7
Function of regulatory T cell
CORRECT ANSWER
Slows or stops the immune response
Question 8
Memory cell
CORRECT ANSWER
Enables quick and efficient response to secondary exposure to antigen
3
, Question 9
Helper T cell
CORRECT ANSWER
Absence results in no immune response
Question 10
Cytotoxic T cell
CORRECT ANSWER
Kills cancer cells and virus infected body cells
Question 11
B cell
CORRECT ANSWER
Forms antibody producing cells
Question 12
Which of the following best illustrates artificially acquired active humoral immunity?
a) infection
b) antivenoms
c) vaccines
d) antibodies received in breast milk
CORRECT ANSWER
c) vaccines
4
