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Parasitology > Canine/Feline- Introduction to protozoa > Flashcards

Canine/Feline- Introduction to protozoa Flashcards

1
Q

Protozoa are what kind of organisms?

A

Unicellular, eukaryotic animals

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2
Q

How are Protozoa classified?

A

based on their mode of locomotion

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3
Q

Protozoa Locomotion is accomplished by what?

A

Pseudopodia
Flagella
Gliding movements
Cilia

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4
Q

What is a Zoite?

A

functional unit of protozoanontogeny

=development

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5
Q

What is a Sporozoite?

A

infective form found in a

sporulated oocyst

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6
Q

What is Trophozoites?

A

form which feeds and grows

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7
Q

What is Tachyzoites

A

form which divides rapidly

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8
Q

What is Bradyzoites

A

form which divides slowly

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9
Q

Oocysts

A

.

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10
Q

Sporulation

A

.

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11
Q

Sporulated oocyst

A

.

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12
Q

Cyst

A

.

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13
Q

What are types Protozoa Asexual reproduction ?

A

Binary fission, budding, schizogony (merogony)

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14
Q

What are asexual reproduction characteristics for protozoa?

A

Protozoa that divide asexually have a short generation time
Exponential increase in the number of zoites
Destruction of host cells in proportion to the infection
Stops after a fixed number of repetitions

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15
Q

What are types Protozoa Sexual reproduction ?

A

Gametogony or sporogony

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16
Q

What are sexual reproduction characteristics for protozoa?

A

Merozoite becomes either a Macrogametocyte (macrogamont) and then a macrogamete OR Microgametocyte (microgamont) and then several
microgametes
When a microgamete fertilizes a macrogamete a zygote forms; then a wall forms around this and it becomes an oocys

17
Q

What is Eucoccidiorida?

A

Parasites of epithelial cells
Sexual and asexual reproduction occurs in epithelial cells
Asexual stages causes damage

18
Q

Examples of Eucoccidiorida?

A 
Eimeria
Cystoisospora
Isospora
Cryptosporidium
Hepatozoon
Sarcocystis
Neospora
Toxoplasma
19
Q

What is Piroplasmorida?

A

Parasites of blood cells
Ticks as vectors
Sexual reproduction takes place in ticks

20
Q

Examples of Piroplasmorida?

A

Babesia

Theileria

21
Q

What is Phylum: Ciliophora?

A

Locomotion by cilia

22
Q

Examples of Phylum: Ciliophora?

A

Balantidium

Parasitology (23 decks)

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