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Microbiology Exam Questions and Answers: Infectious Diseases and Pathogenesis, Exams of Nursing

Chamberlain College of NursingNursing

Exam questions with answers covering microbiology, focusing on infectious diseases and pathogenicity mechanisms. Topics include toxins, virulence factors, host-parasite interactions, and transmission modes. Questions test understanding of microbial pathogenesis, endotoxins, exotoxins, and virulence factors in infection and disease. Suitable for microbiology students, it reviews microbial pathogenesis and host-parasite interactions. A valuable resource for exam preparation, reinforcing key principles in infectious disease microbiology. Structured as questions and answers for easy review and knowledge testing, aiding students in deepening their understanding.

Typology: Exams

2024/2025

Available from 07/01/2025

bryanryan
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MCB35 EXAM QUESTIONS WITH COMPLETE
SOLUTIONS
. A neutralizing antibody against a toxin is called a(n)
__________. Correct Answers antitoxin
A ________________ infection is a disease caused by a
parasitic organism that is normally found in animals other than
humans. Correct Answers zoonotic
A patient develops a high fever due to a Gram-negative
pathogen. Which of the following is a certain mediator of illness
in this case? Correct Answers Endotoxin
A person who is infected with a potential pathogen fails to
develop signs or symptoms of disease. This correlates with
initial microbial dose, microbial lethality, and/or replication rate
of the pathogen. Correct Answers low; high; low
A(n) __________ is an organism that transfers pathogens from
one host to another. Correct Answers vector
All of the following situations are passive modes of penetration
for the invasion of host tissues by opportunistic pathogens
EXCEPT Correct Answers a bacterium adhering to intravenous
tubing, forming a biofilm.
An __________ pathogen can cause disease in a host with
impaired resistance. Correct Answers opportunistic
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Download Microbiology Exam Questions and Answers: Infectious Diseases and Pathogenesis and more Exams Nursing in PDF only on Docsity!

MCB35 EXAM QUESTIONS WITH COMPLETE

SOLUTIONS

. A neutralizing antibody against a toxin is called a(n) __________. Correct Answers antitoxin A ________________ infection is a disease caused by a parasitic organism that is normally found in animals other than humans. Correct Answers zoonotic A patient develops a high fever due to a Gram-negative pathogen. Which of the following is a certain mediator of illness in this case? Correct Answers Endotoxin A person who is infected with a potential pathogen fails to develop signs or symptoms of disease. This correlates with initial microbial dose, microbial lethality, and/or replication rate of the pathogen. Correct Answers low; high; low A(n) __________ is an organism that transfers pathogens from one host to another. Correct Answers vector All of the following situations are passive modes of penetration for the invasion of host tissues by opportunistic pathogens EXCEPT Correct Answers a bacterium adhering to intravenous tubing, forming a biofilm. An __________ pathogen can cause disease in a host with impaired resistance. Correct Answers opportunistic

An animal that is infected with a parasitic organism that can also infect humans is called a(n) ________ host. Correct Answers intermediate An inanimate object that may be contaminated with a pathogen is called a ________ Correct Answers fomite Any organism that can cause disease in the host after direct interaction is a(n) Correct Answers primary pathogen. Bacteria within biofilms exchange Correct Answers A. plasmids. B. quorum-sensing molecules. C. nutrients. D. All of the choices are correct. because LPS is bound to the surface of bacteria, it is called a(n) Correct Answers endotoxin Colonization specifically refers to the multiplication of a pathogen on or within a host, and includes the resulting tissue invasion and damage. Correct Answers FALSE Endotoxin is released when Correct Answers gram-negative pathogens lyse or divide. Endotoxins include which of the following? Correct Answers Lipopolysaccharide Exotoxins can be denatured by iodine to form __________, which are useful in vaccines. Correct Answers toxoids

Many types of bacteria are only _________ when dispersing from more stable and heterogeneous communities known as biofilms. Correct Answers planktonic Once a pathogen has infected the host, __________________ is a measure of the pathogen's ability to spread to adjacent or other tissues. Correct Answers invasiveness One example of infectious disease transmittion by a fomite is Correct Answers a child developing a cold after playing with a toy that harbored rhinovirus. Pathogenicity islands are typically associated with Correct Answers genes encoding tRNA. Place the events associated with each stage of infectious disease in the correct order with regard to time. Correct Answers 2 Prodromal stage 1 Incubation period 4 Convalescence 3 Illness period The capacity of an organism to produce a toxin is called __________. Correct Answers toxigenicity The characteristics of a pathogen that determine its virulence include which of the following? Correct Answers A. Pathogenicity B. Invasiveness C. Infectivity D. All of the choices are correct. The condition in the host that results from pathogenic parasitic organism growing and multiplying within or on the host is called Correct Answers an infection

The final outcome of most host-parasite relationships depends on Correct Answers A. the number of organisms present in or on the host. B. the virulence of the organism. C. the host's defenses. D. All of the choices are correct. The only organisms to produce endotoxins are Gram-negative bacteria. Correct Answers true The term __________ refers to the degree or intensity of pathogenicity. Correct Answers virulence The term "sexually transmitted infection" is more accurate than "sexually transmitted disease" because it is a sexually transmitted pathogen may colonize host tissues without causing further damage to the host Correct Answers true The toxic component of lipopolysaccharide is called _________. Correct Answers lipid A Transfer of pathogens from host to environment and then to another host are said to be transmitted _________. Correct Answers indirectly Vector-borne transmission can be either external or internal. In external (mechanical) transmission, the pathogen is carried Correct Answers on the body surface of a vector Virulence may be measured experimentally at the host level by the __________ __________ __________, which measures the number of pathogens that kills 50% of an experimental group of

Your brother mentions that several days ago he began to feel as if he was coming down with a cold, but now is no longer experiencing any signs or symptoms and feels fine. Having just studied the infectious disease process in your microbiology course, you immediately recognize that he is describing the phase of illness. Correct Answers prodromal