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PARASIT LEC UNIT 1 AND 2 Flashcards

1
Q

4 phylas of Protozoa

A

1.phylum sarcomastigophora
2. Phylum Ciliophora
3. Phylum Apicomplexa
4. Phylum Microspora

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2
Q

What kingdom classification does Protozoa fall under?

A

Kingdom Protista

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3
Q

What is the cell type of Protozoa?

A

Eukaryotic

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4
Q

What cellular organization does Protozoa fall unto?

A

Unicellular

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5
Q

Nutritional type of Protozoa

A

Heterotroph

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6
Q

Greek word Portos mean?

A

First/primitive

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7
Q

What does “protos + zoon” mean?

A

First animal

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8
Q

Why were protozoans described as animal like?

A

Because of their motility

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9
Q

Pathogenic stage

A

Trophozoite

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10
Q

Resistant stage

A

Cysts

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11
Q

Infective stage

A

Cysts

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12
Q

Found in formed stool

A

Cysts

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13
Q

Found in watery stools

A

Trophozoite

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14
Q

Vegetative stage

A

Trophozoite

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15
Q

Found in adverse/ unfavorable conditions

A

Cysts

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16
Q

Found in favorable conditions

A

Trophozoites

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17
Q

Transformed from the active Trophozoite stage to an inactive cyst stage, losing its power of motility, growth, and reproduction, and enclosing itself in a tough wall

A

Encystation

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18
Q

Happens when an organism leaves the cyst stage and continues its life cycle in the trophozoite stage

A

Excystation

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19
Q

True or false: Encystation and Excystation only occur within the host

A

True

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20
Q

New cells are formed from one parent cell only

A

Asexual Mode of Reproduction

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21
Q

Divides into two of more or less equal parts; occurs randomly

A

Binary fission

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22
Q

What parasite lies under the binary fission?

23
Q

The cell would divide across the length

A

Longitudinal Binary Fisson

24
Q

The cell would divide across the width

A

Transverse Binary fisson

25
Q

Parasite found in transverse binary fission

26
Q

Two fissions involved in asexual mode of reproduction

A

A. Binary fission
B. Multiple fisson

27
Q

One parent cell will undergo repeated division. Occurs in apicomplexa

A

Multiple fission

28
Q

What is the dividing form of apicomplexa

29
Q

When the schizont ruptures, it produces individual daughter cells called______

A

Merozoites

30
Q

Division of the cytoplasm

A

Cytokinesis

31
Q

Development of schizonts

A

Schizogony

32
Q

From schizont different meroizoites are formed

33
Q

What sexual mode of reproduction is Formed from two 2 different parent cell

A

Sexual Mode of Reproduction

34
Q

2 process in sexual mode of reproduction

A

Syngamy and Conjugation

35
Q

Sexually di development of gametocytes

A

Gametogony

36
Q

Male gametocyte

A

Microgametocyte

37
Q

Female gametocyte

A

Macrogametocyte

38
Q

Microgametocyte would transform into?

A

Microgamete

39
Q

Macrogametocyte would mature into?

A

Macrogamete

40
Q

Syngamy is also known as?

A

Fertilization

41
Q

When the microgamete fertilizes the macrogamete what would be produced?

42
Q

In apicomplexans, the cystic form is an?

43
Q

Oocyst would divide into multiple cells

A

Sporozoites

44
Q

Involves gene recombination

A

Conjugation

45
Q

Occurs in ciliates under sexual mode of reproduction

A

Conjugation

46
Q

One human ciliate what parasite

A

Balantidium Coli

47
Q

What are the two different type of nuclei in Balanditium Coli

A

Macronucleus
Micronucleus

48
Q

3 generas under the parasitic amoeba

A

Entamoeba
Enolimax
Iodamoeba

49
Q

All are found in the intestinal lumen except?

A

Entamoeba gingivitis

50
Q

All other amoeba species are commensalism except?

A

Entameoba histolytica, pathogenic amoeba

51
Q

All amoeba exist in two forms in the life cycle; trophozoite and cysts EXCEPT?

A

E. Gingivitis; occurs in trophozoite stage only

52
Q

Two groups of amoebae are of medical importance:

A
  1. Parasitic amoebae
  2. Free living amoeba
53
Q

Two species under pathogenic free living amoeba

A
  1. Naegleria
  2. Acanthamoeba
54
Q

3 genera of parasitic amoeba

A
  1. Entamoeba
  2. Endolimax
  3. Iodamoeba

MYco (5 decks)

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