Medical Microbiology Quiz

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Questions and Answers

What is the most common symptom caused by Entamoeba histolytica?

  • Chagas disease
  • Kala Azar
  • Tertian fever
  • Typical flask-shaped ulcer (correct)

Which parasite is responsible for causing cerebral malaria?

  • Plasmodium falciparum (correct)
  • Plasmodium malariae
  • Plasmodium vivax
  • Plasmodium ovale

What disease is Naegleria fowleri known to cause?

  • Meningoencephalitis (correct)
  • Sleeping sickness
  • Hepatic abscess
  • Urethritis in men

Which protozoan parasite lacks a truly defined shape?

<p>Protozoa with no truly defined shape (C)</p> Signup and view all the answers

What is the main complication associated with toxoplasmosis?

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

Which parasite causes visceral leishmaniasis (Kala Azar)?

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

What characteristic best describes pseudomonas, a bacteria infected in degree burns?

<p>Green pus from pyoverdine production. (C)</p> Signup and view all the answers

In a patient with pneumonia and pulmonary abscess, what organism is the most likely causative pathogen based on the described characteristics?

<p>Klebsiella pneumoniae. (C)</p> Signup and view all the answers

What is a likely characteristic of Chlamydia trachomatis, the causative agent of trachoma?

<p>Requires sterols. (A)</p> Signup and view all the answers

Which virus is most likely the cause of infectious mononucleosis in the patient?

<p>Epstein-Barr Virus (B)</p> Signup and view all the answers

What type of colonies are seen on MacConkey agar in the described infection case?

<p>Mucoid pink colonies. (B)</p> Signup and view all the answers

What is the most likely cause of the rash with vesicles on one side of the upper trunk, shoulder, and arm?

<p>Varicella-Zoster Virus (C)</p> Signup and view all the answers

Where is the nucleoid located in bacterial cells, and what is its likely characteristic?

<p>It is a single, continuous, circular single-stranded DNA. (A)</p> Signup and view all the answers

Which component of the bacterial cell wall is mentioned as important in the text?

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

Which of the following is a type 2 Herpes Infection?

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

What is the main effector function carried out by the membrane attack complex (MAC) in the complement activation pathway?

<p>Cytolysis of foreign organisms (D)</p> Signup and view all the answers

How is Cytomegalovirus (CMV) primarily transmitted?

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

Which of the following is NOT part of the innate immune response?

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

What is the Latency period in virology defined as?

<p>The ability of viruses to lie dormant phase. (C)</p> Signup and view all the answers

What is the main mediator of an immediate allergic reaction to peanuts in a child?

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

What is the main line of defense against extracellular bacteria?

<p>Complement activation by alternative pathway (B)</p> Signup and view all the answers

In a tuberculin test, what is the most likely mechanism of tissue damage?

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

What is a molecule that reacts with a specific antibody but is not immunogenic by itself called?

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

Which parasite is known for causing dysentery and rectal prolapse as a complication of infection?

<p>Dysentery and rectal prolapse (D)</p> Signup and view all the answers

What is the infective stage of Ancylostoma duodenale?

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

Where is the habitat of the Schistosoma haematobium adult worm?

<p>Urinary bladder blood vessels (C)</p> Signup and view all the answers

Which parasite is known to cause lymphadenitis, elephantiasis, and lymphedema?

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

What is considered the causative agent when a 2-year-old boy vomits worms?

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

Which parasite has an adult form that possesses teeth or blades and suckers to draw blood?

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

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