Medically Important Protozoa Flashcards

1
Q

ENUMERATE

Medically important protozoa

Hemo CAFE

A

Feeding Grooves
Euglenozoa
Hemoflagellates
Amebae
Ciliates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Single-celled eukaryotes that lack mitochondria

A

Feeding grooves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Microorganism with NO MITOCHONDRIA

A

Gardia lamblia
G. intestinalis
G. duodenalis
Trichomonas vaginalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Disk-shaped mitochondria,
and absence of sexual reproduction.

A

Euglenozoa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Photoautotrophs that move by means of a flagellum at the anterior end and hasa red eyespot at the anterior end.

A

Euglenoids/Euglena

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

This carotenoid-containing organelle senses light and directs the cell in the appropriate direction by using a preemergent flagellum

A

Euglenoids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the semirigid plasma membrane of the Euglenoids called?

A

Pellicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

These are transmitted by the bites of blood-feeding insects and are found in the circulatory system of the bitten host

A

Hemoflagellates (blood parasites)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

It causes African sleeping sickness

A

Trypanosoma brucei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Causative agent of Chaga’s disease

A

Trypanosoma cruzi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How is Chaga’s disease transmitted?

A

It is transmitted by the “kissing bug,”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How is African sleeping sickness transmitted?

A

It is transmitted by the Tse tse fly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Trypanosoma brucei causes what disease?

A

African Sleeping Sickness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Trypanosoma cruzi causes what disease?

A

Chaga’s disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

They have long, slender bodies and an undulating membrane

A

Hemoflagellates (blood parasites)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Move by extending blunt, lobe-like projections of the cytoplasm called pseudopods

A

Amebae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

It is a method used for culture of Amebae

A

HAV-infusion method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

is the only pathogenic ameba found in the human intestine that causes amebic dysentery

A

Entamoeba histolytica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

is the only pathogenic ameba found in the human intestine that causes amebic dysentery

A

Entamoeba histolytica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Non-pathogenic amebae

A

Entamoeba dispar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Amoeba growing in water, including tap water, can infect the cornea and cause blindness.

A

Acanthamoeba

22
Q

An amebae that causes granulomatous amebic encephalitis in the US and infects immunocompromised person.

A

Balamuthia

23
Q

An amebae that causes granulomatous amebic encephalitis in the US and infects immunocompromised person.

A

Balamuthia

24
Q

DOC for asymptomatic amebiasis

DIP

A

Diloxanide furoate
Iodoquinol
Paromomycin

25
Q

DOC for mild to moderate amebiases

A

Metronidazole
Tinidazole
TCN and Erythromycin

26
Q

DOC for severe amebiases

A

Metronidazole IV
Tinidazole
Tetracycline
Dehydroemetine

27
Q

DOC for hepatic abscess, ameboma, and other intestinal disease

A

Metronidazole & Dehydroemetine

28
Q

It is characterized by the presence of a complex of special organelles at the apexes (tips) of their cells.

The organelles in these apical complexes contain enzymes that penetrate the host’s tissues

A

Apicomplexa

29
Q

They have a complex life cycle that involves transmission between several hosts

A

Apicomplexans

30
Q

They are not motile in their mature forms

A

APICOMPLEXA

31
Q

Grows by sexual reproduction from female **Anopheles **mosquito

A

PLASMODIUM

32
Q

Infective stage of Plasmodium. Carried by Anopheles

A

Sporozoite

33
Q

Plasmodium that infects RED BLOOD CELL

A

Merozoites

34
Q

young trophozoites of plasmodium where the nucleus and cytoplasm are visible.

A

Ring trophozoite

35
Q

Male and female gametes cause no further damage but can be pick up by the Anopheles mosquito and begin their sexual cycle.

A

Gametes

36
Q

Sporozoites undergo schizogony in liver cells and produce thousands of progeny called ?

Schizogony: multiple fission, results in multiple cells

A

Merozoites

37
Q

The most common Plasmodium spp. That causes infection in humans

A

P. vivax

38
Q

Plasmodium spp. that causes benign infection all over the world

A

P. malariae

39
Q

Plasmodium spp. which is a less severe form of malaria

A

P. ovale

40
Q

banana shaped Plasmodium spp. which is most dangerous, found in sub-Saharan Africa

A

P. falciparum

41
Q

Itisa disease caused by parasites that infect red blood cells transmitted mainly by Ixodes scapularis ticks

A

Babesiosis

42
Q

Carrier of Babesia microti

A

Ixodes scapularis ticks

43
Q

Parasite that causes Babesiosis

A

Babesia microti

44
Q

The life cycle of this parasite involves domestic cats. This parasite also causes congenital infection in the utero

A

Toxoplasma gondii

45
Q

It reproduces sexually and asexually in an infected cat

under Toxoplasma gondii

A

tachyzoites

46
Q

oocysts, each containing ____ sporozoites, are excreted with feces

under Toxoplasma gondii

A

8

47
Q
  • Lives inside the cells lining the small intestine and can be transmitted to humans through the feces of cows, rodents, dogs, and cats.
  • Cause of the waterborne diarrhea epidemic in 1993
A

Crytosporidium spp

48
Q

Major host of C. parvum

A

Cattles

49
Q

These have cilia that are similar to but shorter than flagella

A

Cilates

50
Q

The only ciliate that is a human parasite, which is the causative agent of a severe, though rare, type of dysentery.

A

Balantidium coli

51
Q

Infective stage of E. histolytica

A

Quadrinucleate cyst

52
Q

Parasite that causes hemolytic anemia that can lead to jaundice and dark urine in immunosuppressed individuals.

A

Babesia microti