Medical Microbiology (Lec 5) (Set 1)

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

Which category of microorganisms lacks cell membranes, cytoplasm, and the machinery for synthesizing macromolecules?

  • Bacteria
  • Viruses (correct)
  • Fungi
  • Protozoans

What confers protection, antigenicity, and stimulates certain pathologic responses in bacteria?

  • Flagellum
  • Nucleoid
  • Pili/fimbriae
  • Bacterial cell wall (correct)

Which category of microorganisms grow as thread-like filaments (hyphae) and can cause infections in internal organs?

  • Viruses
  • Bacteria
  • Protozoans
  • Fungi (correct)

Which category of microorganisms release enzymes to digest material externally and can cause superficial mycoses on the skin and hair?

<p>Fungi (B)</p> Signup and view all the answers

Which category of microorganisms possess genetic material (DNA or RNA) but lack cell membranes, cytoplasm, and the machinery for synthesizing macromolecules?

<p>Viruses (D)</p> Signup and view all the answers

Which category of microorganisms are prokaryotes and lack a distinct nucleus?

<p>Bacteria (C)</p> Signup and view all the answers

Which of the following is NOT a characteristic used to classify bacteria?

<p>Color (B)</p> Signup and view all the answers

Which of the following is a method used to identify viruses?

<p>Serologic reactivity (D)</p> Signup and view all the answers

Which genus is responsible for causing malaria?

<p>Plasmodium (B)</p> Signup and view all the answers

What is the most prevalent region for infections caused by protozoa?

<p>Tropical and subtropical regions (C)</p> Signup and view all the answers

Which of the following is NOT used for the identification of bacteria below genus level?

<p>Genomic sequencing (C)</p> Signup and view all the answers

Which body sites are normally sterile?

<p>Blood and bone marrow, cerebrospinal fluid (D)</p> Signup and view all the answers

What is the significance of an isolate from a certain body site?

<p>All of the above (D)</p> Signup and view all the answers

What is the time required for conventional microbiological diagnosis to achieve results?

<p>Minimum 18 hours (C)</p> Signup and view all the answers

Which diagnostic technique does not require culture?

<p>PCR and oligonucleotide probes (C)</p> Signup and view all the answers

What is the definition of an opportunistic infection?

<p>An infection caused by a weakened immune system (D)</p> Signup and view all the answers

What is the difference between acute and chronic infection?

<p>Acute infection is more severe than chronic infection (A)</p> Signup and view all the answers

What is the most common cause of infection-related death in the USA and Europe?

<p>Pneumonia (D)</p> Signup and view all the answers

True or false: Viruses are considered living organisms because they possess genetic material and cell membranes.

<p>False (B)</p> Signup and view all the answers

True or false: Bacteria are eukaryotes and have a distinct nucleus.

<p>False (B)</p> Signup and view all the answers

True or false: Fungi can cause infections in internal organs and are part of normal body flora.

<p>True (A)</p> Signup and view all the answers

True or false: Cryptococcus is a genus of bacteria.

<p>False (B)</p> Signup and view all the answers

True or false: Plasmodium falciparum is the species responsible for causing malaria.

<p>True (A)</p> Signup and view all the answers

True or false: Bacterial strains are genetic variants or subspecies.

<p>True (A)</p> Signup and view all the answers

True or false: Lower respiratory tract infections tend to be less severe than upper respiratory tract infections.

<p>False (B)</p> Signup and view all the answers

True or false: Pneumonia is the most common cause of infection-related death in the USA and Europe.

<p>True (A)</p> Signup and view all the answers

True or false: Tuberculosis primarily affects the lungs and rarely spreads to other sites in the body.

<p>False (B)</p> Signup and view all the answers

True or false: Tubercles in tuberculosis may heal spontaneously and become fibrotic or calcified.

<p>True (A)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Related Documents

More Like This

Use Quizgecko on...
Browser
Browser