28 Questions
Which category of microorganisms lacks cell membranes, cytoplasm, and the machinery for synthesizing macromolecules?
Viruses
What confers protection, antigenicity, and stimulates certain pathologic responses in bacteria?
Bacterial cell wall
Which category of microorganisms grow as thread-like filaments (hyphae) and can cause infections in internal organs?
Fungi
Which category of microorganisms release enzymes to digest material externally and can cause superficial mycoses on the skin and hair?
Fungi
Which category of microorganisms possess genetic material (DNA or RNA) but lack cell membranes, cytoplasm, and the machinery for synthesizing macromolecules?
Viruses
Which category of microorganisms are prokaryotes and lack a distinct nucleus?
Bacteria
Which of the following is NOT a characteristic used to classify bacteria?
Color
Which of the following is a method used to identify viruses?
Serologic reactivity
Which genus is responsible for causing malaria?
Plasmodium
What is the most prevalent region for infections caused by protozoa?
Tropical and subtropical regions
Which of the following is NOT used for the identification of bacteria below genus level?
Genomic sequencing
Which body sites are normally sterile?
Blood and bone marrow, cerebrospinal fluid
What is the significance of an isolate from a certain body site?
All of the above
What is the time required for conventional microbiological diagnosis to achieve results?
Minimum 18 hours
Which diagnostic technique does not require culture?
PCR and oligonucleotide probes
What is the definition of an opportunistic infection?
An infection caused by a weakened immune system
What is the difference between acute and chronic infection?
Acute infection is more severe than chronic infection
What is the most common cause of infection-related death in the USA and Europe?
Pneumonia
True or false: Viruses are considered living organisms because they possess genetic material and cell membranes.
False
True or false: Bacteria are eukaryotes and have a distinct nucleus.
False
True or false: Fungi can cause infections in internal organs and are part of normal body flora.
True
True or false: Cryptococcus is a genus of bacteria.
False
True or false: Plasmodium falciparum is the species responsible for causing malaria.
True
True or false: Bacterial strains are genetic variants or subspecies.
True
True or false: Lower respiratory tract infections tend to be less severe than upper respiratory tract infections.
False
True or false: Pneumonia is the most common cause of infection-related death in the USA and Europe.
True
True or false: Tuberculosis primarily affects the lungs and rarely spreads to other sites in the body.
False
True or false: Tubercles in tuberculosis may heal spontaneously and become fibrotic or calcified.
True
Test your knowledge of medical microbiology with this quiz! Explore topics such as the prevention, diagnosis, and treatment of infectious and communicable diseases caused by viruses, bacteria, fungi, and parasites. Enhance your understanding of clinical and scientific practices in this essential field.
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