Delost Introduction to Diagnostic
Microbiology
CHAPTER 1
Match the following terms with the correct definition:
1. Infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER e. Entrance and multiplication of a microorganism in a host
Match the following terms with the correct definition:
2. Infectious disease
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER a. Condition associated with functional and structural harm to the
host, accompanied by signs and symptoms
Match the following terms with the correct definition:
3. Opportunistic infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
,host - ANSWER b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
Match the following terms with the correct definition:
4. Nosocomial infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER c. Infection acquired in a health care setting
Match the following terms with the correct definition:
5. Colonization
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
6. All the following sites contain normal flora except:
a. Oral cavity
b. Skin
c. Colon
d. Cerebrospinal fluid - ANSWER d. Cerebrospinal fluid
7. Which of the following is not classified as a direct route
of infection?
a. Ingestion of contaminated food or water
b. Sexual contact
c. Hand-to-hand contact
d. Congenital contact - ANSWER a. Ingestion of contaminated food or water
8. Droplet infection through contact with infectious
respiratory secretions may be described as:
a. Inhalation of infectious aerosols during laboratory
procedures
,b. Transmission of rhinovirus through failing to wash
hands
c. Spread of respiratory viruses and Streptococcus
pyogenes through coughing or sneezing
d. Inhalation of bacteria or viruses that have dried on
bedding or clothing - ANSWER d. Inhalation of bacteria or viruses that have dried
on
bedding or clothing
9. Which of the following organisms are typically spread
through the ingestion of contaminated food or water?
a. Neisseria meningitidis and S. pyogenes
b. Salmonella and Shigella
c. Herpes simplex virus and Treponema pallidum
d. Plasmodium and Borrelia - ANSWER b. Salmonella and Shigella
10. Which of the following organisms are spread through
arthropod vectors?
a. N. meningitidis and S. pyogenes
b. Salmonella and Shigella
c. Herpes simplex virus and T. pallidum
d. Plasmodium and Borrelia - ANSWER d. Plasmodium and Borrelia
11. Innate, or natural, immunity involves which of the
following mechanisms?
a. Mucus and cilia in the respiratory tract that help to
trap and clear microorganisms
b. Humoral immunity
c. Cell-mediated immunity
d. Immunity resulting from vaccination - ANSWER a. Mucus and cilia in the
respiratory tract that help to
trap and clear microorganisms
12. The movement of neutrophils and monocytes from the
blood to injured tissue is known as:
a. Diapedesis
b. Chemotaxis
c. Ingestion
d. Hematopoiesis - ANSWER a. Diapedesis
13. Antibody-producing white blood cells are:
a. Macrophages
b. Neutrophils
c. T lymphocytes
d. B lymphocytes - ANSWER d. B lymphocytes
14. Which of the following cells play a major role in cell-mediated
immunity?
a. Macrophages
b. Neutrophils
, c. T lymphocytes
d. B lymphocytes - ANSWER c. T lymphocytes
15. The immunoglobulin found in the highest
concentration in normal serum is:
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM - ANSWER d. IgG
16. Which of the following immunoglobulins is involved
mainly in the primary immune response?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM - ANSWER e. IgM
17. Gram-negative bacteria contain ___ which are not found in gram-positive
bacteria.
a. Capsules
b. Periplasmic space and outer membrane
c. Teichoic acids
d. Cross-linked peptidoglycan - ANSWER b. Periplasmic space and outer
membrane
18. Which of the following is true for bacterial cells?
a. The DNA is contained within a nuclear membrane.
b. Their mitochondria, Golgi bodies, and endoplasmic
reticulum are present in the cytoplasm.
c. The DNA is found in the nucleoid.
d. The ribosomes are 80S. - ANSWER b. Their mitochondria, Golgi bodies, and
endoplasmic
reticulum are present in the cytoplasm.
19. The are important for motlity of the bacterial cell.
a. pili
b. capsules
c. flagella
d. LPS - ANSWER c. flagella
20. Phenotypic properties used to classify bacteria include
all of the following except:
a. DNA relatedness
b. Colonial morphology
c. Biochemical properties
d. Antibiotic resistance patterns - ANSWER a. DNA relatedness
CHAPTER 2
Microbiology
CHAPTER 1
Match the following terms with the correct definition:
1. Infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER e. Entrance and multiplication of a microorganism in a host
Match the following terms with the correct definition:
2. Infectious disease
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER a. Condition associated with functional and structural harm to the
host, accompanied by signs and symptoms
Match the following terms with the correct definition:
3. Opportunistic infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
,host - ANSWER b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
Match the following terms with the correct definition:
4. Nosocomial infection
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER c. Infection acquired in a health care setting
Match the following terms with the correct definition:
5. Colonization
a. Condition associated with functional and structural
harm to the host, accompanied by signs and
symptoms
b. Infection in an immunocompromised host that
does not cause infection in an immunocompetent
individual
c. Infection acquired in a health care setting
d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
e. Entrance and multiplication of a microorganism in a
host - ANSWER d. Presence and multiplication of a microorganism in a
host with no clinical signs of infection
6. All the following sites contain normal flora except:
a. Oral cavity
b. Skin
c. Colon
d. Cerebrospinal fluid - ANSWER d. Cerebrospinal fluid
7. Which of the following is not classified as a direct route
of infection?
a. Ingestion of contaminated food or water
b. Sexual contact
c. Hand-to-hand contact
d. Congenital contact - ANSWER a. Ingestion of contaminated food or water
8. Droplet infection through contact with infectious
respiratory secretions may be described as:
a. Inhalation of infectious aerosols during laboratory
procedures
,b. Transmission of rhinovirus through failing to wash
hands
c. Spread of respiratory viruses and Streptococcus
pyogenes through coughing or sneezing
d. Inhalation of bacteria or viruses that have dried on
bedding or clothing - ANSWER d. Inhalation of bacteria or viruses that have dried
on
bedding or clothing
9. Which of the following organisms are typically spread
through the ingestion of contaminated food or water?
a. Neisseria meningitidis and S. pyogenes
b. Salmonella and Shigella
c. Herpes simplex virus and Treponema pallidum
d. Plasmodium and Borrelia - ANSWER b. Salmonella and Shigella
10. Which of the following organisms are spread through
arthropod vectors?
a. N. meningitidis and S. pyogenes
b. Salmonella and Shigella
c. Herpes simplex virus and T. pallidum
d. Plasmodium and Borrelia - ANSWER d. Plasmodium and Borrelia
11. Innate, or natural, immunity involves which of the
following mechanisms?
a. Mucus and cilia in the respiratory tract that help to
trap and clear microorganisms
b. Humoral immunity
c. Cell-mediated immunity
d. Immunity resulting from vaccination - ANSWER a. Mucus and cilia in the
respiratory tract that help to
trap and clear microorganisms
12. The movement of neutrophils and monocytes from the
blood to injured tissue is known as:
a. Diapedesis
b. Chemotaxis
c. Ingestion
d. Hematopoiesis - ANSWER a. Diapedesis
13. Antibody-producing white blood cells are:
a. Macrophages
b. Neutrophils
c. T lymphocytes
d. B lymphocytes - ANSWER d. B lymphocytes
14. Which of the following cells play a major role in cell-mediated
immunity?
a. Macrophages
b. Neutrophils
, c. T lymphocytes
d. B lymphocytes - ANSWER c. T lymphocytes
15. The immunoglobulin found in the highest
concentration in normal serum is:
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM - ANSWER d. IgG
16. Which of the following immunoglobulins is involved
mainly in the primary immune response?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM - ANSWER e. IgM
17. Gram-negative bacteria contain ___ which are not found in gram-positive
bacteria.
a. Capsules
b. Periplasmic space and outer membrane
c. Teichoic acids
d. Cross-linked peptidoglycan - ANSWER b. Periplasmic space and outer
membrane
18. Which of the following is true for bacterial cells?
a. The DNA is contained within a nuclear membrane.
b. Their mitochondria, Golgi bodies, and endoplasmic
reticulum are present in the cytoplasm.
c. The DNA is found in the nucleoid.
d. The ribosomes are 80S. - ANSWER b. Their mitochondria, Golgi bodies, and
endoplasmic
reticulum are present in the cytoplasm.
19. The are important for motlity of the bacterial cell.
a. pili
b. capsules
c. flagella
d. LPS - ANSWER c. flagella
20. Phenotypic properties used to classify bacteria include
all of the following except:
a. DNA relatedness
b. Colonial morphology
c. Biochemical properties
d. Antibiotic resistance patterns - ANSWER a. DNA relatedness
CHAPTER 2
