Parasitology and Microbiology Quiz
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Parasitology and Microbiology Quiz

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@FragrantNeptune

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Questions and Answers

What are parasites that require a host to live known as?

Parasites

Under which phylum is the structure of kinetoplast seen in a parasite?

Phylum Euglenozoa

In which type of organism is the circulatory system absent?

amoebas

Under which phylum are the genera Plasmodium, Toxoplasma, and Cyclospora classified?

<p>Phylum Apicomplexa</p> Signup and view all the answers

What is the only ciliate found in the human intestinal tract?

<p>Balantidium coli</p> Signup and view all the answers

What are the copulatory organs of nematode parasites?

<p>Spicule and gubernaculum</p> Signup and view all the answers

What is the function of the apical complex in parasites?

<p>Attachment to the host</p> Signup and view all the answers

What type of parasite is an aberrant parasite?

<p>A parasite that migrates and reaches the site of the host but cannot live or develop further</p> Signup and view all the answers

What is the phylum of Amoeba?

<p>Protozoa</p> Signup and view all the answers

What are the locomotory organs of Amoeba?

<p>Pseudopodia</p> Signup and view all the answers

How many forms of Amoeba are there?

<p>Three (trophozoite, cyst, and precystic stage)</p> Signup and view all the answers

What is the mode of infection of Plasmodium vivax?

<p>Through the bite of an infected female Anopheles mosquito</p> Signup and view all the answers

What is the diagnostic stage of Trichomonas vaginalis?

<p>Trophozoite stage</p> Signup and view all the answers

What is the treatment for Dientamoeba fragilis?

<p>Metronidazole or tinidazole</p> Signup and view all the answers

What occurs when cysts reach the lower part of the small intestine?

<p>Excystation occurs</p> Signup and view all the answers

Where do trophozoites inhabit and multiply in the large intestine?

<p>In the submucous tissue</p> Signup and view all the answers

What is the process by which trophozoites become cysts in the large intestine?

<p>Encystation</p> Signup and view all the answers

How do trophozoites spread from the intestine to other organs such as the liver and lung?

<p>Through the bloodstream by invading the intestinal mucosa</p> Signup and view all the answers

What is the primary symptom of intestinal amoebiasis?

<p>Ulcerative lesions and bloody diarrhoea</p> Signup and view all the answers

What is the composition of the abscess fluid in liver abscess?

<p>Leukocytes, bacteria, and cellular debris</p> Signup and view all the answers

How are trophozoites demonstrated in stool samples during lab diagnosis?

<p>Saline preparation</p> Signup and view all the answers

What is the purpose of iodine preparation in stool samples during lab diagnosis?

<p>To study cysts or dead trophozoites</p> Signup and view all the answers

What is the size of the trophozoite of Entamoeba coli?

<p>20-40 mm</p> Signup and view all the answers

Is Entamoeba coli capable of causing extra-intestinal infection?

<p>No</p> Signup and view all the answers

How is Entamoeba coli transmitted?

<p>Through the fecal-oral route (not specified in the content, but general knowledge)</p> Signup and view all the answers

What is the characteristic of the nucleus in the trophozoite of Entamoeba coli?

<p>Larger eccentric karyosome</p> Signup and view all the answers

What is the characteristic of the cyst of Entamoeba coli?

<p>15-20 mm with 1-8 nuclei</p> Signup and view all the answers

What is the characteristic of the motility of Entamoeba coli?

<p>Sluggish, multiple directions</p> Signup and view all the answers

What is the characteristic of the cytoplasm of Entamoeba coli?

<p>Not separated, contains no RBC</p> Signup and view all the answers

What is the distribution of Entamoeba coli?

<p>Worldwide</p> Signup and view all the answers

What is the name of the protozoan parasite that is responsible for intestinal amoebiasis and is also found in the atrial region?

<p>Entamoeba histolytica</p> Signup and view all the answers

What is the name of the free-living amoeba that can cause a severe and fatal infection of the central nervous system?

<p>Naegleria fowleri</p> Signup and view all the answers

What is the name of the protozoan parasite that is responsible for giardiasis, a diarrheal disease?

<p>Giardia lamblia</p> Signup and view all the answers

What is the name of the blood and tissue sporozoan parasite that is responsible for malaria?

<p>Plasmodium vivax</p> Signup and view all the answers

What is the name of the protozoan parasite that is responsible for trichomoniasis, a sexually transmitted disease?

<p>Trichomonas vaginalis</p> Signup and view all the answers

What is the name of the protozoan parasite that is responsible for balantidiasis, a diarrheal disease?

<p>Balantidium coli</p> Signup and view all the answers

Study Notes

Parasites

  • Parasites that require a host to live are known as parasites.
  • Phylum of kinetoplast: structure is seen in parasites under this phylum.
  • Circulatory system is absent in some parasites.

Protozoa

  • Intestinal amoeba:
  • Entamoeba histolytica:
    • Can cause extra-intestinal infection
    • Can spread to liver, lungs, and brain through the bloodstream
    • Causes hepatic amoebiasis, where an amoebic liver abscess is formed
  • Entamoeba coli:
    • Nonpathogenic commensal
    • Larger than E. histolytica (20-50 um)
    • Sluggish motility
    • Life cycle is the same as E. histolytica but does not invade tissue
  • Free-living amoeba:
  • Naegleria fowleri
  • Acanthamoeba spp.
  • Iodamoeba butschlii
  • Intestinal and atrial flagellates and ciliates:
  • Giardia lamblia
  • Dientamoeba fragilis
  • Blastocystis hominis
  • Trichomonas vaginalis
  • Balantidium coli

Blood and tissue sporozoa

  • Plasmodium:
  • P. vivax
  • P. ovale
  • P. malariae
  • P. knowlesi
  • Leishmania spp.
  • Trypanosoma spp.
  • Babesiosis
  • Toxoplasma gondii
  • Pneumocystis carinii

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Description

Test your knowledge of parasitology and microbiology with this quiz, covering topics such as parasites, kinetoplast, circulatory systems, and more.

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