Protozoans

studied byStudied by 11 people
5.0(1)
get a hint
hint

Entamoeba histolytica

1 / 220

encourage image

There's no tags or description

Looks like no one added any tags here yet for you.

221 Terms

1

Entamoeba histolytica

In subphylum sarcodina parasites, all are commensal except for?

New cards
2

Entamoeba gingivalis

In subphylum sarcodina parasites, all are intestinal dwellers except for?

New cards
3

Entamoeba gingivalis and Dientamoeba fragilis

In subphylum sarcodina parasites, all undergo encystation except for?

New cards
4

Binary fission

Amoebas multiply through?

New cards
5

Loesch

E. histolytica was first described by?

New cards
6

Cysts

Infective stage of E. histolytica

New cards
7

Ingestion of food/water with Entamoeba histolytica cyst

Mode of transmission of E. histolytica

New cards
8

Cockroach (Periplaneta americana), Flies (Musca domestica)

Phoretic vectors of E. histolytica

New cards
9

Amoebiasis

What is the pathology of E. histolytica

New cards
10

Metronidazole

Treatment for E. histolytica

New cards
11

MOTILE

MOTILE or NON-MOTILE. Trophozoite of E. histolytica

New cards
12

NON-MOTILE

MOTILE or NON-MOTILE. Cyst of E. histolytica

New cards
13

Trophozoite

In what form is the feeding stage of E. histolytica

New cards
14

Cyst

In what form is the non-feeding stage of E. histolytica

New cards
15

Trophozoite

It is the vegetative state of E. histolytica?

New cards
16

Cyst

It is the infective state of E. histolytica?

New cards
17

Watery, soft, or semi-formed stool

Trophozoite of E. histolytica is found in what type of stool?

New cards
18

Soft to formed stool

Cyst of E. histolytica is found in what type of stool?

New cards
19

Fragile

Trophozoites of E. histolytica is _______ as they are destroyed by gastric juices hence they are the non-infective stage

New cards
20

Resistant to acidic pH

Cyst of E. histolytica is ________ due to its cystic wall which contains chitin and lectins

New cards
21

FALSE

TRUE or FALSE. Trophozoites of E. histolytica cannot encyst if excreted from the body as encystation only occurs in the small intestine

New cards
22

Entamoeba coli

They are harmless inhabitant of the colon

New cards
23

Entamoeba dispar

This parasite is morphologically similar to E. histolytica and it can only be distinguish by their DNA or rRNA

New cards
24

Entamoeba harmanni

They are also similar with E. histolytica but smaller and has no RBC inclusion

New cards
25

Small race

E. hartmanni asre known as the _____ of E. histolytica

New cards
26

Entamoeba hartmanni

The cysts of these parasites are quadrinucleated with coarse cytoplasm; their immature cyst has chromatoidal bars

New cards
27

Entamoeba polecki

These are the parasite of pigs and monkeys; they rarely infect humans

New cards
28

Cyst

E. polecki is distinguished from E. histolytica by?

New cards
29

Uninucleated

The cysts of E. polecki are consistently?

New cards
30

Entamoeba gingivalis

This can be found in the mouth (gum and teeth surface)

New cards
31

Entamoeba gingivalis

Which ameoba does not have a cyst stage?

New cards
32

E. histolytica, E. dispar, E. moshkovskii, E. bangladeshi

Which 4 amoebas are morphologically similar?

New cards
33

0-41 degrees celsius

E. moshkovskii are able to survive at a temperature ranging from?

New cards
34

Endolimax nana

It is the smallest protozoa

New cards
35

Endolimax nana

Which parasite has a cyst that is quadrinucleated with eccentric karyosome?

New cards
36

Sluggish and mononuclear

What characteristic does a Endolimax nana trophozoite possess?

New cards
37

Iodamoeba butschlii

This parasite has an iodine cyst and has a large glycogen vacuole/body which stains deeply with iodine.

New cards
38

Unidirectional, active progressive

Movement of E. histolytica trophozoite stage

New cards
39

Sluggish, non progressive

Movement of E. coli trophozoite stage

New cards
40

Entamoeba histolytica trophozoite

What parasite and stage has a pseudopodia shape of finger-like?

New cards
41

Entamoeba coli trophozoite

What parasite and stage has a pseudopodia shape of blunt?

New cards
42

RBCs

What does E. histolytica have that makes it different from E. coli trophozoite?

New cards
43

Bacteria, yeast, cell debris

What does E. coli have that makes it different from E. histolytica trophozoite?

New cards
44

CLEAN-LOOKING

CLEAN-LOOKING or DIRTY-LOOKING. Endoplasm of Entamoeba histolytica

New cards
45

DIRTY-LOOKING

CLEAN-LOOKING or DIRTY-LOOKING. Endoplasm of Entamoeba coli

New cards
46

Entamoeba histolytica trophozoite

Which parasite has a uninucleated nucleus with central karyosome

New cards
47

Entamoeba coli trophozoite

Which parasite has a uninucleated nucleus with eccentric karyosome

New cards
48

less than or equal to 4

Number of nuclei of E. histolytica cyst

New cards
49

greater than 4 (mature: 8)

Number of nuclei of E. coli cyst

New cards
50

Cigar/rod/coffin-lid shaped

What are the chromatoidal bar shape of E. histolytica cyst

New cards
51

Witch-broom/splintered/needle like

What are the chromatoidal bar shape of E. coli cyst

New cards
52

Thick

THICK or THIN. Nuclear membrane of E. coli

New cards
53

THIN

THICK or THIN. Nuclear membrane of E. histolytica

New cards
54

Intestinal amoebiasis

Most common pathology of Amoebiasis

New cards
55

Amoebic dysentery

This pathology is caused by E. histolytica and is differentiated by another pathogen by the presence of Charcot-Leyden Crystals

New cards
56

Amoebic colitis

This is the ulceration of the intestine and is caused by E. histolytica

New cards
57

Flask-shaped

What shape is the ulcer when there is an amoebic colitis?

New cards
58

Extraintestinal amoebiasis

This type of pathogen occurs due to its motility

New cards
59

Hepatic amoebiasis

This is the most common extraintestinal amoebiasis

New cards
60

Anchovy sauce-like appearance

Amoebic liver abscess has a what type of appearance?

New cards
61

Hepatic amoebiasis, Pulmonary amoebiasis, Cerebral amoebiasis, Amebic pericarditis, Cutaneous amoebiasis, Genital amoebiasis

What are the 6 Extraintestinal Amoebiasis?

New cards
62

Cytoadherence

This is use for the attachment to large intestine

New cards
63

Galactose/N-acetyl galactosamine

What type of lectin has a characteristic to attach to the large intestine? (Full name)

New cards
64

Caspase-3

Which factor causes apoptotic death of mucosal cells

New cards
65

Myosin IB

Which factor ingests RBC?

New cards
66

Entamoeba histolytica

Myosin IB results in presence of RBCs in what amoeba?

New cards
67

Amebapores

These factors are pore-formers and causes ulceration of tissues/cells of the host

New cards
68

Cysteine proteinase

This is the most virulent factor

New cards
69

Cysteine proteinase

Which factor causes tissue invasiveness that leads to extraintestinal amoebiasis

New cards
70

Trophozoite motility

What is observed in the Saline solution direct fecal smear?

New cards
71

Saline + Methylene Blue

Which type of DFS is used for Entamoeba species wherein they are stained blue?

New cards
72

Saline + Lugol’s iodine

This is where only nucleus of E. histolytica cyst can be observed

New cards
73

Stramenophile

Blastocystis hominis does not have an exact taxonomic classification which means they are?

New cards
74

Blastocystis hominis

This amoeba is commensal but it may cause diarrhea to some immunocompromised patient

New cards
75

Dientamoeba fragilis

This amoeba can be transported by pinworm to man

New cards
76

Rosette-shaped

The shape of Dientamoeba fragilis nuclei

New cards
77

Commensal, Ameboflagellate, has no cyst stage

Characteristics of Dientamoeba fragilis

New cards
78

Irritable Bowel Syndrome

Chronic infection of Dientamoeba fragilis may mimic what?

New cards
79

Primary Amoebic Meningoencephalitis (PAM)

N. fowleri is the causative agent of?

New cards
80

Naegleria fowleri

This parasite is thermophilic wherein they can survive up to 30 degrees celsius

New cards
81

Promitosis

N. fowleri multiplies through?

New cards
82

TRUE

TRUE OR FALSE. The nuclear membrane of N. fowleri does not break down

New cards
83

Cerebrospinal fluid

Specimens used in diagnosing N. fowleri

New cards
84

Spinal tap

Cerebrospinal fluid for diagnosing N. fowleri is collected through?

New cards
85

Escherichia coli

When diagnosing N. fowleri in culture, non nutrient medium with Page’s saline seeded with living what?

New cards
86

1 mg/L chlorine solution, pH 8-8.01, Place in 38 degrees celsius

Ways to eliminate N. fowleri

New cards
87

Uninucleated with rounded chromatoidal bars

Cyst of N. fowleri

New cards
88

Amoeboid

Which for of the trophozoite of N. fowleri can be recognized in humans?

New cards
89

Flagellated

Which form of N. fowleri trophozoite does not divide

New cards
90

Acanthamoeba castellani

What is the most common Acanthamoeba species?

New cards
91

Granulomatous Amebic Encephalitis

This is a destructive encephalopathy and associated with meningeal irritation

New cards
92

Amebic keratitis

This is associated with improperly disinfected contact lenses when cleaned with tap water or impure lens solution

New cards
93

Discharges, exudates, tissue secretions

Specimen used for Acanthamoeba species

New cards
94

Bacterial growth

The antibiotics added when culturing Acanthamoeba species removed unwanted?

New cards
95

Balamuthia mandrillaris

The pathology of this amoeba is similar with Granulomatous Amebic Encephalitis

New cards
96

Finger-like pseudopodia

Characteristic of Balamuthia mandrillaris trophozoite

New cards
97

Spherical

Shape of Balamuthia mandrillaris cyst

New cards
98

Sappinia diploidea

This is a newly recognized human pathogen causing amoebic encephalitis

New cards
99

Ciliates

Phylum ciliophora is also known as?

New cards
100

Balantidium coli

The only member of Phylum ciliophora

New cards

Explore top notes

note Note
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 103 people
Updated ... ago
5.0 Stars(5)
note Note
studied byStudied by 244 people
Updated ... ago
4.2 Stars(11)
note Note
studied byStudied by 8 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 14 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 59945 people
Updated ... ago
4.9 Stars(248)

Explore top flashcards

flashcards Flashcard254 terms
studied byStudied by 44 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard48 terms
studied byStudied by 22 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard24 terms
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard167 terms
studied byStudied by 12 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard44 terms
studied byStudied by 7 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard113 terms
studied byStudied by 8 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard20 terms
studied byStudied by 23 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard188 terms
studied byStudied by 30 people
Updated ... ago
5.0 Stars(1)