20 Questions
Which characteristic of pathogens refers to their ability to damage tissue?
Damaging the tissue
What type of infection is characterized by an initial infection with a microorganism?
Primary infection
Which term is used to describe the extent to which a microorganism can cause damage to an infected host?
Virulence
What is the characteristic that differentiates local infections from generalized infections?
Infection at localized sites
In which type of infection does a new organism set up an infection due to lowered resistance from pre-existing diseases?
Secondary infection
What is the specific gravity of pus?
Greater than 1.013
Which type of cells are predominantly involved in chronic infections?
Lymphocytes, plasma cells, and monocytes
What term refers to cell death or tissue destruction at the site of pus formation?
Necrosis
Which type of infection elicits an inflammatory response that includes PUS formation?
Acute suppurative infection
Which factor contributes to the virulence of microbial strains?
Invasiveness
Which bacterial product prevents phagocytosis and fibrin barrier formation?
Coagulase
What is the minimum amount of pathogen required to cause an infection in the host known as?
Minimum infecting dose (MID)
Which bacterial appendage plays a role in infecting host tissues and spaces?
Pilli
What bacterial product has the function of breaking down Hyaluranic acid to infect tissues?
Hyaluronidase
Which factor determines the survival and distribution of an organism in a community?
Communicability
What is the primary role of invasins in microbial infection?
Breaking down host defense mechanisms
Which bacterial component is responsible for dissolving the collagen framework of muscles during infection?
Collagenase
What is the main purpose of bacterial adherence to mucosal surfaces?
To facilitate colonization at the portal of entry
Which bacterial component disrupts neutrophil membranes and leads to the discharge of lysosomal granules?
Leukocidin
Why is the permanent attachment of a microorganism to the eukaryotic surface significant in infection?
It ensures sustained colonization and pathogenesis
This quiz covers the characteristics of pathogens, the concept of infection, and the virulence of microorganisms. Learn about how pathogens enter the body, multiply, cause damage to tissues, and resist host defenses. Explore the definition of infection and the extent to which microorganisms can cause harm.
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