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Parasitology > Protozoa (Sporozoa) > Flashcards

Protozoa (Sporozoa) Flashcards

1
Q

What are the species under class Sporozoa?

A 
Plasmodium spp.
Babesia spp
Toxoplasma gondii
Isospora belli
Cryptospridium parvum/hominis
Cycloapora cayetanensis spp
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2
Q

Asexual method of multiplication.

A

Schizogony

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3
Q

Sexual method of multiplication

A

Sporogony

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4
Q

Female gametocyte

A

Macrogametes

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5
Q

Male gametocyte

A

Microgametes

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6
Q

Mode of transmission of Isospora belli

A

Ingestion of sporulated oocyst

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7
Q

Mode of transmission of Toxoplasma gondii

A
  1. Consumption of raw infected meat
  2. BM transplantation
  3. WBC transfusion
  4. Ingestion of oocyst
  5. Transplacental
  6. Accidental (laboratory)
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8
Q

Mode of transmission of Cryptosporidium parvum

A

Ingestion of oocyst from fecally contaminated water and food.

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9
Q

Schizogony produces ________.

A

Schizont

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10
Q

Sporogony produces ________.

A

Oocyst

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11
Q

Inside of schizont

A

Merozoite

Remember that the another term for schizogony is merogony, hence, it is MEROzoite

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12
Q

Inside of oocyst

A

Sporozoite

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13
Q

Definitive host of Toxoplasma gondii

A

Cats

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14
Q

Intermediate host of Toxoplasma gondii

A

Man

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15
Q

Schizogony of Toxoplasma gondii

A

Animals/man

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16
Q

Sporogony of Toxoplasma gondii

A

Cat’s intestine

17
Q

Laboratory test/s for Toxoplasma gondii

A
  1. Biopsy
  2. Serological tests –IHA, ELISA, LAT, IFA, Sabin-Feldman
  3. DNA determination by PCR
18
Q

Causative agent of Toxoplasmosis

A

Toxoplasma gondii

19
Q

Infective stage of Toxoplasma gondii

A

Fecal oocysts and tissue cysts

20
Q

Diagnostic stage of Toxoplasma gondii

A

Tissue cysts

21
Q

True or False: Humans may probably be infected with Isospora belli by accidental hand-to-mouth ingestion of sporulated oocyst.

A

True

22
Q

Infective stage of Isospora belli

A

Oocysts

23
Q

Diagnostic stage of Isospora belli

A

Oocysts

24
Q

Causative agent of Sarcocystis

A

Isospora belli

25
Q

It is one of the opportunistic agents in AIDS patients.

A

Cryptosporidium parvum

26
Q

Reservoir host of Cryptosporidium parvum

A

Cattle

27
Q

Infective stage of C. parvum

A

Oocysts

28
Q

Diagnostic stage of C. parvum

A

Oocysts

29
Q

How many sporozoites in the sporulated oocysts?

A

4

Parasitology (6 decks)

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