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Protozoa > Protozoa Ch1 > Flashcards

Protozoa Ch1 Flashcards

1
Q

Binary fission

A

Giardia lamblia

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2
Q

Budding

A

A bud which is formed detaches to develop into a new organism

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3
Q

Budding ex

A

Toxoplasma gondii

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4
Q

Asexual Protozoa

A

Giardia lamblia + Toxoplasma gondii

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5
Q

Protozoans are a group of

A

65,000 (or more)

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6
Q

colonized a wide array of

A

aquatic + terrestrial habitats.

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7
Q

Protozoa not a part of microbial community

A

False

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8
Q

Protozoa live in

A

moistmoisture films

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9
Q

Protozoa are …………organisms
, even though living in a …………environment

A

aquatic

terrestrial

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10
Q

All …………in the individual protozoa organism appear alike.

A

nuclei

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11
Q

Protozoa nucleus is ……… with scattered chromatin giving a diffuse appearance to the nucleus.

A

vesicular

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12
Q

One of Protozoa type of vesicular nucleus contains a more or less central body, called an …………

A

endosome or karyosome

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13
Q

The protozoal cells are not enclosed by a…………

A

cell wall

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14
Q

The protozoal cells are protected protected by a special thin and pliable layer known as

A

pellicle or periplast. ةرشق

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15
Q

The Protozoa ………… is separated into two layers

A

cytoplasm

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16
Q

The cytoplasm is separated into two layers: an outside layer called

A

ectoplasm

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17
Q

The Protozoa cytoplasm is separated into two layers: the interior layer called.

A

endoplasm

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18
Q

Protozoa have a relatively ……… , …….. structure

A

complex , internal

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19
Q

Protozoa have internal structures carry out complex metabolic activities ex:

A

membrane-bound nucleus, Golgi bodies, endoplasmic reticulum, ribosomes and mitochondria.

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20
Q

Importance of Protozoans

A

Soil fertility.

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21
Q

Protozoa can manage bacterial populations by …………

A

feeding on soil bacteria

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22
Q

Protozoa Accelerate the decomposition of ……………

A

dead organic substances by microbes.

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23
Q

Protozoa Excrete ………… in soils promotes plant growth.

A

N and P

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24
Q

Protozoa helps in Wastewater treatment.

A

True

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25
Protozoa provides
shelter, carbon, and vital phytonutrients.
26
Protozoa Found worldwide and in most habitats.
True
27
…………species are …………, but all higher animals are infected with one or more species of protozoa.
Most free living,
28
Which of the following statements is true about infections? A. All infections are life-threatening. B. The severity of an infection depends on the species and strain of the parasite. C. The severity of an infection depends on the age of the host. D. Asymptomatic infections are always harmless.
Answer: B
29
. Asexual Protozoa
Giardia lamblia Toxoplasma gondii
30
division result in the formation of two daughter of parasite.
Binary fission
31
Binary fission
Giardia lamblia
32
A bud which is formed detaches to develop into a new organism.
Budding
33
Budding Protozoa
Toxoplasma gondii
34
sexual Protozoa
malarial parasite ciliate protozoa
35
sexual Protozoa type
Syngamy Conjugation
36
A motile microgamete unites with a non-motile macrogamete to generate a diploid zygote in Sporozoa
Syngamy
37
transfer of genetic material between cells by direct cell-to-cell contact or by a bridge like connection between two cells.
Conjugation
38
Conjugation
ciliate protozoa
39
Syngamy
malarial parasite)
40
The male and female gametes give rise to the same unicellular fusion to form a diploid zygote. both gametes are produced by the same parasites
Autogamy
41
Autogamy It occurs in some
ciliated protozoa e.g.; Paramecium.
42
can survive extreme environments for long period of time before infecting their host
Cysts stage
43
is contagious, they feed and multiply. Can not survive in extreme environments
trophozoite stage
44
Rhizopoda move by
pseudopodia
45
Rhizopoda are
Intestina Free living
46
Rhizopoda moved by pseudopodia in Intestina
E. histolytica Entamoeba coli
47
Rhizopoda moved by pseudopodia that are free living
Naegleria fowleri Acantham oeba spp
48
ZooMastigophora move by
flagella
49
ZooMastigophora are in
Intestinal Uro genital Blood +Tissue
50
ZooMastigophora in Intestinal
Giardia lamblia
51
ZooMastigophora transfer with Uro genital
Trichomonas vaginalis
52
ZooMastigophora transfer with Blood and Tissue
Trypanosoma spp Leishmani
53
sporozoa are moving by
No organs for locomotion)
54
sporozoa stick in
Intestinal Blood Tissue
55
sporozoa in Intestinal
Cryptosp oridium
56
sporozoa in Blood
Plasmodium
57
sporozoa Tissue
Toxoplasma gondii
58
Ciliates Move by
cilia
59
Ciliates infected in
Intestinal
60
Ciliates in Intestinal
Balantidium coli
61
exist in human body and cause harm to infected human.
Pathogenic protozoa:
62
does not cause harm to infected human. (Normal flora?)
Commensal protozoa:
63
does not cause harm to infected human. (Normal flora?)
Commensal protozoa
64
weak protozoa that cause minimal effect to infected healthy man but has severe effect on infected immunocompromised.
Opportunistic protozoa
65
trophozoites through intimate body contact, such as sexual transmission (
Direct transmission
66
Direct transmission ex
Trichomonas spp.)
67
humans get infected through ingestion of water/food contaminated with parasites’ cysts. (
Faecal-oral transmission
68
• Faecal-oral transmission ex:
Entamoeba spp.)
69
trophozoites taken up by blood-sucking of insects and passed to new hosts when they next feed
• Vector-borne transmission
70
zoites encysted within the tissues of a prey animal (herbivore) being eaten by a predator (carnivore) which subsequently sheds spores into the environment to be ingested by new prey animals,
Predator-prey transmission
71
Predator-prey transmission ex
Toxoplasma

Protozoa (1 decks)

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