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EXO-NOTES > PROTOZOA > Flashcards

PROTOZOA Flashcards

1
Q

General characteristics of protozoa

A

Unicellular eukaryotic organism
Vary in shape, size, locomotion
Do not possess a cell wall
Contains periplast
Two cytoplasm (endoplasm and ectoplasm)

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2
Q

Locomotor organelle of amoeba

A

Pseudopodia

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3
Q

All amoeba inhabit the large intestine, except

A

Entaomeba gingivalis

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4
Q

All amoeba are commensals, except

A

Entaomeba histolytica

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5
Q

All amoeba undergo excystation, except

A

Entaomeba gingivalis

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6
Q

Amoeba divides through

A

Binary fission

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7
Q

Does true amoeba contain peripheral chromatin and chromatoidal bodies?

A

Yes

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8
Q

Amoeba that does not posses peripheral chromatin and chromatoidal bodies

A

Endolimax
Iodameoba

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9
Q

Mass of chromatin at the center of nucleus

A

karyosome

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10
Q

Conditions that may trigger encystation of amoeba

A

Amoeba overpopulation
pH change
Food supply
Oxygen availability

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11
Q

Diseases caused by E. histolytica

A

Amoebic colitis
Amoeboma
Amoebic liver abscess

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12
Q

Virulence factors of E. histolytica and their function

A

Gal/GalNac: for adhesion
Amoebapore: form pores
Cysteine proteinases: for cytopathic effefcts

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13
Q

Characterized by bull’s eye cyst

A

E. histolytica

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14
Q

The shape of chromatoidal bar of E. histolytica

A

Coffin/cigar/sausage

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15
Q

The shape of chromatoidal bar of E. coli

A

Splinterlike with pointed ends

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16
Q

Small race of E. histolytica

A

E. hartmanni

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17
Q

Ameoba of oral cavity

A

Entamoeba gingivalis

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18
Q

Parasite found in the intestines of pigs and monkeys

A

Entamoeba polecki

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19
Q

Motility of E. histolytica

A

Progressive unidirectional

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20
Q

Motility of E. coli

A

Sluggish nonprogressive

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21
Q

Cross-eyed cyst

A

Endolimax nana

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22
Q

Ameba of pigs

A

Iodamoeba butschlii

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23
Q

Amoeba with basket-like nucleus

A

Iodamoeba butschlii

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24
Q

Motor components of flagellates

A

Flagella

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25
Q

All flagellates inhabit the large intestine, except

A

Giardia lamblia
Trichomonas vaginalis
Trichomonas tenax

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26
Q

All flagellates are commensals, except

A

G. lamblia
D. fragilis
T. vaginalis

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27
Q

Most common cause of intestinal worldwide

A

Giardia lamblia

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28
Q

Shape of G. lamblia cyst

A

Football shape

29
Q

Appearance of G. lamblia trophozoite

A

Oldman with sunglasses

30
Q

Motility of G. labmlia

A

Falling leaf motility

31
Q

Motility of Chilomastix mesnilli

A

Corkscrew motility

32
Q

Shape of Chilomastix mesnilli cyst

A

Lemon shape

33
Q

Parasite characterized by Shepherd’s crook and Spiral groove

A

Chilomastix mesnilli

34
Q

5 morphology of B. hominis

A

Vacuolated
Amoeba like
Granular
Avacuolar
Multiple fission

35
Q

Habitat of T. hominis

A

Small intestine

36
Q

Habitat of T. tenax

A

Oral cavity

37
Q

Habitat of T. vaginalis

A

Urogenital tract

38
Q

Smallest trichomonas

A

T. tenax

39
Q

Largest trichomonas

A

T. vaginalis

40
Q

Undulating membrane of T. hominis

A

As long as costa

41
Q

Undulating membrane of T. tenax

A

2/3 of costa

42
Q

Undulating membrane of T. vaginalis

A

< 1/2 of costa

43
Q

The most common nonviral STI

A

T. vaginalis

44
Q

MOT of Naegleria fowleri

A

Intranasal/Inhalation

45
Q

Causative agent of Secondary Amoebic Meningoencephalitis

A

E. histolytica

46
Q

Causative agent of Granulomatous Amoebic Encephalitis

A

Acanthamoeba spp.

47
Q

Causative agent of Primary Amoebic Meningoencephalitis

A

Naegleria fowleri

48
Q

May infect the blood, lymph nodes, muscles and RES

A

Hemoflagellates

49
Q

Infective stages of T. cruzi and T. brucei

A

Metacyclic trypomastigote

50
Q

Infective stage of Leishmania

A

Promastigote

51
Q

Causative agent of East African Sleeping Fever

A

Trypanosoma brucei rhodensiense

52
Q

Causative agent of West African Sleeping Fever

A

Trypanosoma brucei gambiense

53
Q

Vector of Trypanosoma brucei complex

A

Tsetse fly

54
Q

Vector of Trypanosoma cruzi

A

Triatoma bugs

55
Q

Causative agent of benign tertian malaria

A

Plasmodium vivax

56
Q

Causative agent of malignant tertian malaria

A

Plasmodium falciparum

57
Q

Causative agent of Black water fever

A

Plasmodium falciparum

58
Q

Causative agent of Quartan malaria

A

Plasmodium malariae

59
Q

Disease caused Plasmodium ovale

A

Tertian malaria

60
Q

Pigment of P. vivax

A

Schuffner’s

61
Q

Pigment of P. falciparum

A

Maurer’s

62
Q

Pigment of P. malariae

A

Zeimann’s

63
Q

Pigment of P. ovale

A

James’

64
Q

Age of RBC infected by P. vivax; and how does it affect it

A

Immature RBCs; enlarged

65
Q

Age of RBC infected by P. falciparum; and how does it affect it

A

All age of RBCs; normal size

66
Q

Age of RBC infected by P. malarie; and how does it affect it

A

Mature RBCs; normal size

67
Q

Age of RBC infected by P. ovale; and how does it affect it

A

Immature RBCs; enlarged with distorted cell walls

68
Q

Largest protozoa infecting man

A

Balantidium coli

69
Q

Characteristics of Plasmodium knowlesi

A

Mimic early stage of P. falciparum and Late stage of P. malariae

EXO-NOTES (5 decks)

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