PROTOZOA

Question 1

General characteristics of protozoa

Answer 1

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

Question 2

Locomotor organelle of amoeba

Answer 2

Pseudopodia

Question 3

All amoeba inhabit the large intestine, except

Answer 3

Entaomeba gingivalis

Question 4

All amoeba are commensals, except

Answer 4

Entaomeba histolytica

Question 5

All amoeba undergo excystation, except

Answer 5

Entaomeba gingivalis

Question 6

Amoeba divides through

Answer 6

Binary fission

Question 7

Does true amoeba contain peripheral chromatin and chromatoidal bodies?

Answer 7

Yes

Question 8

Amoeba that does not posses peripheral chromatin and chromatoidal bodies

Answer 8

Endolimax
Iodameoba

Question 9

Mass of chromatin at the center of nucleus

Answer 9

karyosome

Question 10

Conditions that may trigger encystation of amoeba

Answer 10

Amoeba overpopulation
pH change
Food supply
Oxygen availability

Question 11

Diseases caused by E. histolytica

Answer 11

Amoebic colitis
Amoeboma
Amoebic liver abscess

Question 12

Virulence factors of E. histolytica and their function

Answer 12

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

Question 13

Characterized by bull’s eye cyst

Answer 13

E. histolytica

Question 14

The shape of chromatoidal bar of E. histolytica

Answer 14

Coffin/cigar/sausage

Question 15

The shape of chromatoidal bar of E. coli

Answer 15

Splinterlike with pointed ends

Question 16

Small race of E. histolytica

Answer 16

E. hartmanni

Question 17

Ameoba of oral cavity

Answer 17

Entamoeba gingivalis

Question 18

Parasite found in the intestines of pigs and monkeys

Answer 18

Entamoeba polecki

Question 19

Motility of E. histolytica

Answer 19

Progressive unidirectional

Question 20

Motility of E. coli

Answer 20

Sluggish nonprogressive

Question 21

Cross-eyed cyst

Answer 21

Endolimax nana

Question 22

Ameba of pigs

Answer 22

Iodamoeba butschlii

Question 23

Amoeba with basket-like nucleus

Answer 23

Iodamoeba butschlii

Question 24

Motor components of flagellates

Answer 24

Flagella

Question 25

All flagellates inhabit the large intestine, except

Answer 25

Giardia lamblia Trichomonas vaginalis Trichomonas tenax

Question 26

All flagellates are commensals, except

Answer 26

G. lamblia D. fragilis T. vaginalis

Question 27

Most common cause of intestinal worldwide

Answer 27

Giardia lamblia

Question 28

Shape of G. lamblia cyst

Answer 28

Football shape

Question 29

Appearance of G. lamblia trophozoite

Answer 29

Oldman with sunglasses

Question 30

Motility of G. labmlia

Answer 30

Falling leaf motility

Question 31

Motility of Chilomastix mesnilli

Answer 31

Corkscrew motility

Question 32

Shape of Chilomastix mesnilli cyst

Answer 32

Lemon shape

Question 33

Parasite characterized by Shepherd's crook and Spiral groove

Answer 33

Chilomastix mesnilli

Question 34

5 morphology of B. hominis

Answer 34

Vacuolated Amoeba like Granular Avacuolar Multiple fission

Question 35

Habitat of T. hominis

Answer 35

Small intestine

Question 36

Habitat of T. tenax

Answer 36

Oral cavity

Question 37

Habitat of T. vaginalis

Answer 37

Urogenital tract

Question 38

Smallest trichomonas

Answer 38

T. tenax

Question 39

Largest trichomonas

Answer 39

T. vaginalis

Question 40

Undulating membrane of T. hominis

Answer 40

As long as costa

Question 41

Undulating membrane of T. tenax

Answer 41

2/3 of costa

Question 42

Undulating membrane of T. vaginalis

Answer 42

< 1/2 of costa

Question 43

The most common nonviral STI

Answer 43

T. vaginalis

Question 44

MOT of Naegleria fowleri

Answer 44

Intranasal/Inhalation

Question 45

Causative agent of Secondary Amoebic Meningoencephalitis

Answer 45

E. histolytica

Question 46

Causative agent of Granulomatous Amoebic Encephalitis

Answer 46

Acanthamoeba spp.

Question 47

Causative agent of Primary Amoebic Meningoencephalitis

Answer 47

Naegleria fowleri

Question 48

May infect the blood, lymph nodes, muscles and RES

Answer 48

Hemoflagellates

Question 49

Infective stages of T. cruzi and T. brucei

Answer 49

Metacyclic trypomastigote

Question 50

Infective stage of Leishmania

Answer 50

Promastigote

Question 51

Causative agent of East African Sleeping Fever

Answer 51

Trypanosoma brucei rhodensiense

Question 52

Causative agent of West African Sleeping Fever

Answer 52

Trypanosoma brucei gambiense

Question 53

Vector of Trypanosoma brucei complex

Answer 53

Tsetse fly

Question 54

Vector of Trypanosoma cruzi

Answer 54

Triatoma bugs

Question 55

Causative agent of benign tertian malaria

Answer 55

Plasmodium vivax

Question 56

Causative agent of malignant tertian malaria

Answer 56

Plasmodium falciparum

Question 57

Causative agent of Black water fever

Answer 57

Plasmodium falciparum

Question 58

Causative agent of Quartan malaria

Answer 58

Plasmodium malariae

Question 59

Disease caused Plasmodium ovale

Answer 59

Tertian malaria

Question 60

Pigment of P. vivax

Answer 60

Schuffner's

Question 61

Pigment of P. falciparum

Answer 61

Maurer's

Question 62

Pigment of P. malariae

Answer 62

Zeimann's

Question 63

Pigment of P. ovale

Answer 63

James'

Question 64

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

Answer 64

Immature RBCs; enlarged

Question 65

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

Answer 65

All age of RBCs; normal size

Question 66

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

Answer 66

Mature RBCs; normal size

Question 67

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

Answer 67

Immature RBCs; enlarged with distorted cell walls

Question 68

Largest protozoa infecting man

Answer 68

Balantidium coli

Question 69

Characteristics of Plasmodium knowlesi

Answer 69

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