NUR 612 MODULE 2 REVIEW OF ALL TERMS |COMPLETE
STUDY GUIDE WITH 100% ACCURATE QUESTIONS
&ANSWERS. EXCELLENCE GUARANTEED.
Colonization Answer: Microorganisms multiplying on body surfaces without causing tissue
injury or symptoms.
Infection Answer: Microorganisms invading tissues, multiplying, and causing cellular injury or
inflammation.
Definitive Host Answer: The organism in which a parasite reaches its mature stage.
Intermediate Host Answer: An organism involved in the immature stages of a parasite's
development.
Pathogenicity Answer: The ability of a microorganism to cause disease.
Virulence Answer: The degree of severity or harmfulness of a specific pathogen.
Opportunistic Infection Answer: Disease caused by organisms that only become pathogenic
when host defenses are impaired.
Mutualism Answer: A symbiotic relationship where both the microorganism and the host
benefit.
Commensalism Answer: A relationship where one organism benefits while the host remains
unaffected.
Parasitism Answer: A relationship where one organism benefits at the expense of harming the
host.
Prions Answer: Abnormal infectious proteins that cause neurodegeneration and lack DNA or
RNA.
Viral Replication Requirement Answer: Viruses require host cells because they lack ribosomes
and ATP production machinery.
Chlamydiae and Rickettsiae Answer: Organisms with bacterial structures that require obligate
intracellular growth like viruses.
Incidence Answer: The number of new cases of a disease over a specific time.
Prevalence Answer: The total number of existing cases in a population at a given time.
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, Endemic Answer: A constant, low-level presence of a disease within a specific region.
Epidemic Answer: A sudden increase in disease cases above the expected baseline.
Pandemic Answer: A worldwide epidemic that crosses multiple continents.
Incubation Period Answer: The time between initial exposure to a pathogen and the onset of
symptoms.
Prodromal Stage Answer: The stage of early, vague symptoms like malaise and fatigue.
Acute Stage Answer: The phase of peak illness with disease-specific symptoms and maximum
inflammatory response.
Convalescence Answer: The recovery phase where tissue repair occurs.
Bactericidal Answer: Antibiotics that directly kill bacteria.
Bacteriostatic Answer: Antibiotics that inhibit bacterial growth, requiring the host's immune
system to finish destruction.
Innate Immunity Answer: The immediate, genetically programmed first line of defense that is
nonspecific.
Adaptive Immunity Answer: A delayed but highly specific immune response that develops
immunologic memory.
Cytokines Answer: Small protein signaling molecules that regulate inflammation and immune
cell communication.
Interferons Answer: Cytokines produced during viral infections to inhibit replication and activate
NK cells.
Complement C3b Answer: A plasma protein that coats pathogens to enhance phagocytosis
(opsonization).
Membrane Attack Complex (MAC) Answer: A complement structure that creates pores in
microbial membranes to cause lysis.
PAMPs Answer: Pathogen-associated molecular patterns; common microbial structures
recognized by the innate system.
Toll-like Receptors (TLRs) Answer: Pattern recognition receptors that activate inflammation and
cytokine release.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
STUDY GUIDE WITH 100% ACCURATE QUESTIONS
&ANSWERS. EXCELLENCE GUARANTEED.
Colonization Answer: Microorganisms multiplying on body surfaces without causing tissue
injury or symptoms.
Infection Answer: Microorganisms invading tissues, multiplying, and causing cellular injury or
inflammation.
Definitive Host Answer: The organism in which a parasite reaches its mature stage.
Intermediate Host Answer: An organism involved in the immature stages of a parasite's
development.
Pathogenicity Answer: The ability of a microorganism to cause disease.
Virulence Answer: The degree of severity or harmfulness of a specific pathogen.
Opportunistic Infection Answer: Disease caused by organisms that only become pathogenic
when host defenses are impaired.
Mutualism Answer: A symbiotic relationship where both the microorganism and the host
benefit.
Commensalism Answer: A relationship where one organism benefits while the host remains
unaffected.
Parasitism Answer: A relationship where one organism benefits at the expense of harming the
host.
Prions Answer: Abnormal infectious proteins that cause neurodegeneration and lack DNA or
RNA.
Viral Replication Requirement Answer: Viruses require host cells because they lack ribosomes
and ATP production machinery.
Chlamydiae and Rickettsiae Answer: Organisms with bacterial structures that require obligate
intracellular growth like viruses.
Incidence Answer: The number of new cases of a disease over a specific time.
Prevalence Answer: The total number of existing cases in a population at a given time.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Endemic Answer: A constant, low-level presence of a disease within a specific region.
Epidemic Answer: A sudden increase in disease cases above the expected baseline.
Pandemic Answer: A worldwide epidemic that crosses multiple continents.
Incubation Period Answer: The time between initial exposure to a pathogen and the onset of
symptoms.
Prodromal Stage Answer: The stage of early, vague symptoms like malaise and fatigue.
Acute Stage Answer: The phase of peak illness with disease-specific symptoms and maximum
inflammatory response.
Convalescence Answer: The recovery phase where tissue repair occurs.
Bactericidal Answer: Antibiotics that directly kill bacteria.
Bacteriostatic Answer: Antibiotics that inhibit bacterial growth, requiring the host's immune
system to finish destruction.
Innate Immunity Answer: The immediate, genetically programmed first line of defense that is
nonspecific.
Adaptive Immunity Answer: A delayed but highly specific immune response that develops
immunologic memory.
Cytokines Answer: Small protein signaling molecules that regulate inflammation and immune
cell communication.
Interferons Answer: Cytokines produced during viral infections to inhibit replication and activate
NK cells.
Complement C3b Answer: A plasma protein that coats pathogens to enhance phagocytosis
(opsonization).
Membrane Attack Complex (MAC) Answer: A complement structure that creates pores in
microbial membranes to cause lysis.
PAMPs Answer: Pathogen-associated molecular patterns; common microbial structures
recognized by the innate system.
Toll-like Receptors (TLRs) Answer: Pattern recognition receptors that activate inflammation and
cytokine release.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
