MICROBIOLOGY BI 234 LECTURE EXAM 2 QUESTIONS
AND ANSWERS WITH COMPLETE SOLUTIONS
Which of the following cells of innate immunity is involved in allergic reactions?
Select all that apply
a. eosinophils
b. neutropohils
c. basophils
d. macrophages
a. Eosinophils
c. Basophils
Which of the cells of innate immunity ejects its chromatin to capture and
immobilize bacteria?
Neutrophils
Which of the following is a characteristic of innate immunity, but not of adaptive
immunity? Select ALL that apply
a. the ability to distinguish cells of the self vs. other cells
b. A non-specific immune response
c. A dependence on antigens
d. An immediate immune response
,b. A non-specific immune response
d. An immediate immune response
Which of the cells of innate immunity is expected to increase in number when
infected by a parasite?
Eosinophils
Which of the following is a function of complement proteins in innate immunity?
Select all that apply
a. Neutralization
b. Bind to free iron
c. Membrane attack complex
d. opsonization
c. membrane attack complex
d. opsonization
Which function is found in neutrophils, macrophages, and dendritic cells?
Phagocytosis
What best describes the function of lysozyme in immunity?
Enzyme that breaks down peptidoglycan
Which function is found in macrophages and dendritic cells, but not in
neutrophils?
Antigen presentation
Which of the "cardinal signs" of inflammation does not apply to all patients?
Rubor (redness) - darker skin can display this symptom differently
What is the meaning of the acronym PAMP?
, Pathogen associated molecular pattern
Which of the following AMPs is paired most correctly with its location?
Bacterocins - intestines
Inflammation results in swelling, increased heat, and pain at the site of damage.
what is the ultimate cause of these characteristics?
Increased blood flow and capillary permeability at the damaged site
A person's microbiota has a negative impact on the growth of pathogens? What
is the name of this phenomenon?
Microbial antagonism
What is the function of Interferons?
Signal for antiviral defenses and immune cell activation - a cytokine that provides
defenses against viral infection
Which of the following most correctly describes the function of a fever?
Fever increases host metabolic rate, leading to a faster immune response
Lysozyme and lactoferrin are examples of which type of innate barrier?
Chemical/enzymatic
Urinating and sneezing are examples of which type of innate barrier?
Mechanical barrier
Which of the following bacterial structures is an example of a PAMP?
a. pili
b. LPS
c. Flagella
d. peptidoglycan
AND ANSWERS WITH COMPLETE SOLUTIONS
Which of the following cells of innate immunity is involved in allergic reactions?
Select all that apply
a. eosinophils
b. neutropohils
c. basophils
d. macrophages
a. Eosinophils
c. Basophils
Which of the cells of innate immunity ejects its chromatin to capture and
immobilize bacteria?
Neutrophils
Which of the following is a characteristic of innate immunity, but not of adaptive
immunity? Select ALL that apply
a. the ability to distinguish cells of the self vs. other cells
b. A non-specific immune response
c. A dependence on antigens
d. An immediate immune response
,b. A non-specific immune response
d. An immediate immune response
Which of the cells of innate immunity is expected to increase in number when
infected by a parasite?
Eosinophils
Which of the following is a function of complement proteins in innate immunity?
Select all that apply
a. Neutralization
b. Bind to free iron
c. Membrane attack complex
d. opsonization
c. membrane attack complex
d. opsonization
Which function is found in neutrophils, macrophages, and dendritic cells?
Phagocytosis
What best describes the function of lysozyme in immunity?
Enzyme that breaks down peptidoglycan
Which function is found in macrophages and dendritic cells, but not in
neutrophils?
Antigen presentation
Which of the "cardinal signs" of inflammation does not apply to all patients?
Rubor (redness) - darker skin can display this symptom differently
What is the meaning of the acronym PAMP?
, Pathogen associated molecular pattern
Which of the following AMPs is paired most correctly with its location?
Bacterocins - intestines
Inflammation results in swelling, increased heat, and pain at the site of damage.
what is the ultimate cause of these characteristics?
Increased blood flow and capillary permeability at the damaged site
A person's microbiota has a negative impact on the growth of pathogens? What
is the name of this phenomenon?
Microbial antagonism
What is the function of Interferons?
Signal for antiviral defenses and immune cell activation - a cytokine that provides
defenses against viral infection
Which of the following most correctly describes the function of a fever?
Fever increases host metabolic rate, leading to a faster immune response
Lysozyme and lactoferrin are examples of which type of innate barrier?
Chemical/enzymatic
Urinating and sneezing are examples of which type of innate barrier?
Mechanical barrier
Which of the following bacterial structures is an example of a PAMP?
a. pili
b. LPS
c. Flagella
d. peptidoglycan
