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Parasitology: Micro 2 > Test 1 Possible Questions > Flashcards

Test 1 Possible Questions Flashcards

1
Q

Most important factor in distribution of parasitic infection in industrialized nations is?

A 
Plane travel
(also, rapid traveling and High number of immunodeficient people)
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2
Q

Plasmodium reproduces via sexual or asexual?

A

Both asexual in humans and sexual in mosquito

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3
Q

The entamoeba histolytica infection can be prevented and ocontrolled by the _____?

A

Water Treatment & Food sanitation

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4
Q

Nagelaria fowleri that normally infect _______ can accidently infect human and cause primary acute meningoencephalitis.

A

Ducks and Geese

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5
Q

Naeglaria fowleri infection in human begins with entrance of parasite to _____ by _____.

A

Nasal passage, Diving and swimming

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6
Q

Trichomonas vaginalis is transmitted by ?

A

Sexual intercourse

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7
Q

A flagellated protozoa that inhabit the atria of human and causes sexually transmitted disease.

A

Trichomonas vaginalis

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8
Q

An amoeba that is normally found among ducks, geese, and swans. It is an accidental parasite of humans and may cause primary acute meningocephalitis.

A

Naeglaria Fowleri

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9
Q

The 3rd most common round worm in the USA is:

A

Whipworm (trichuris trichuria)

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10
Q

The 2nd most common round worm in the USA is:

A

Ascaris (longest)

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11
Q

The MOST common round worm in the USA is:

A

Pinworm (enterobus)

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12
Q

An intestinal flagellate with no observable flagella that uses pseudopodia for movement and causes diarrhea in humans:

A

Dientamoeba Fragilla

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13
Q

Dientamoeba fragilis, an intestinal parasite that uses _____ for movement and causes diarrhea in humans.

A

Pseudopodia

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14
Q

Giardia is not highly invasive; the target tissue is the:

A

Intestine

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15
Q

This vector is able to transmit Kala- azar disease to humans.

A

Sand fly

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16
Q

Diagnosis of malaria is achieved through direct identification of plasmodia in a?

A

Blood smear

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17
Q

The number of worms in the intestinal tract is the:

A

Worm burden

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18
Q

Common name for anisakidae marina is:

A

Herring worm

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19
Q

The parasitic organism most commonly associated with waterborne outbreaks of diarrhea in GA?

A

Cryptosporidium Parvum

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20
Q

A blood parasite that invades all red blood cells and is known as the deadliest plasmodium.

A

Plasmodium Falciparum

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21
Q

The definitive (final) host for toxoplasma gondii is?

A

Domestic Cat

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22
Q

Increase in worm burden in the intestinal tract will happen by?

A

Reinfestation

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23
Q

A blood parasite that invades reticulocytes is characterized by simple ring forms may cause a rue relapse is:

A

Plasmodium vivax

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24
Q

Since infection with toxoplasmosis during pregnancy may cause embryonic or fetal damage, pregnant woman should avoid contact with?

A

Cat feces

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25
The final host for plasmodium malariae is?
Female anopheles Mosquito
26
The most common intestinal flagellated protozoa isolated from clinical specimens in the USA is?
Giardia lamblia
27
Source of transmission of Giardia Lamblia?
Contaminated food & contaminated water
28
When the parasite live on the host and its life cycle will not be completed there:
Infestation
29
Host that parasite passes its adult and sexual reproduction:
Definitive host
30
Transport parasite from infected host to non-infected host:
Arthropoda
31
An animal that harbors a species of parasite and can serve as a source of parasitic infections:
Reservoir
32
Hosts that parasite passes its larvae and asexual reproduction:
Intermediate host
33
Diagnosis of filariasis is difficult because symptoms are broad- spectrum, but with the identification of microfiliaria and examining _____ diagnosis is possible.
Presence or absence of sheath Array of stained nuclei on the tail
34
Trichinella spiralis larvae can be encysted in striated muscle of mammal, and can be transmitted to human by?
Undercooked meat
35
The eggs of this intestinal roundworm do not require incubation in warm humid soil for its infectivity:
Pinworm
36
Anisakidae marina worm infections is very common in?
Japan
37
Plasmodium vivax causes mild hemolytic anemia because of invasion of?
Immature red blood cells
38
Which one of the following is the most likely way to get infected by Giardia lamblia?
Ingestion of cyst
39
A unique feature of sporozoan is that they?
Have a complex method of reproduction including asexual, and sexual.
40
Which of the following genera causes vaginitis
Trichomonas
41
Which of the following statements describe protozoan?
They are Eukarotes | They can be grouped on the base of motility
42
Important factors involved in the severity of parasitic infection:
``` Virulence Innoculation size Normal flora Host resistant (all of the above) ```
43
Major locomotion of sarcodinia?
Pseudopodia
44
Transports parasite from infective to non-infected.
V ector
45
Host organism in which parasite passes to adult and/or sexual reproduction phase.
Definitive of final host
46
Invasion and multiplication of pathogenic parasite into the body.
Infection
47
Host that parasite passes its larvae and asexually reproduces.
Intermediate host
48
The severity of parasitic infection is related to?
State of resistance (most important)
49
Pear shaped trophozoite of of sporozoa characterized by many ring forms in RBC.
Babesia Mincroti (thick, 2-4 rings)
50
Prolonged heavy infection of Giardia Lamblia results in?
Fat in stools
51
Symptoms of malaria that repeats episodically:
Headaches
52
Most round worms are found in?
Human intestines (but answer is none of the above)
53
Why is host immune response to parasites sometimes ineffective?
Having capsule or slime layer Complex life cycle of parasite Conversion of antigen on the parasite surface All of the above
54
Most sporozoa are pathogens.
True
55
Person may acquire toxoplasmosis ONLY from cysts.
True
56
Blood flagella are transmitted by vectors.!(example TseTse fly)
True
57
Upon infection with Naeglaria fowleri, clinical symptoms are very similar to common cold.
True
58
Most of the adult helminth worms are large, can be seen without microscope.
True
59
Amoeba reproduce asexually ONLY.
True
60
An oocyst is the result of asexual reproduction in plasmodium
True
61
A person may acquire toxoplasmosis from eating improperly cooked meat.
True
62
Threadworm is the only worm to reproduce inside the human. | And the only female adult form inside the human.
True
63
A male anopheles mosquito is a final host for plasmodium vivax.
True
64
Prolonged heavy infection of Giardia lambiia may result in malabsorption which result that stool contains large amounts of unabsorbed fat of intestinal mucosa.
True
65
. Round worms are the MOST prevalent helmenth worm infection around the world.
True
66
Larval form of parasite can be destroyed by antibodies, and the presence of these antibodies provide resistance to reinfection by parasite
True
67
Trichinella spiralis
Trichinosis Undercooked pork Undercooked bear Focal lesion
68
T. Saginata
Beef tapeworm infection Cysticercus
69
T. Solium
Pork Tapeworm Eggs cysticercosis
70
E. histolytica can be prevented and controlled by
water treatment
71
A patient complains of diarrhea and crump after returning from a rafting trip in Canada. he said he was drinking water from streams. Which flagellate protozoa is he most likely infected by?
Giardia Lambelia
72
This vector is able to transmit River blindness disease to humans, and their breeding sites are overhanging vegetation sites
Black fly (simulium fly)
73
An ameba that is normally found among ______ and its is an accidental parasite of humans and may cause primary acute meningocephalitis:
Duck and Geese
74
An intestinal protozoa with no observable flagella which use pseudopodia for its movement and causes diarrhea in humans
Dientamoeba fragilis
75
Which one of the following is/are NOT IMPORTANT factors in distribution of parasitic infection in industrial society
high number of healthy people
76
Which of these are IMPORTANT in distribution of parasitic infection in industrial society
rapid travel | high number of immunodeficient people
77
Why is th host immune response to parasitic infection sometimes ineffective
large size of parasite | complex life cycle of parasite
78
Important factors involved in severity of parasitic infection are
Virulence of parasite State of immunity of host Size of inoculation
79
Major locomotor in Sporozoan is
Movement is not a prominent characteristic in most cells, but occasionally flagella or pseudopoda are present. None of the Above
80
An intestinal ciliate which can form cyst and causes diarrhea in humans
Balantidium Coli (An intestinal ciliate):
81
A hemoflagellate parasite that can be transmitted to human by Assassin bug bite
trypanosoma | crozi
82
trypanosoma | crozi
'Assassin bug' because when it infects a person with trypanosoma crozi that person contracts Chaga' s disease and usually dies
83
a hemoflagellate parasite that can live and multiply in the blood and tissues of humans
trypanosomes cruzi
84
Reduvvid bug is able to transmit ______ diseases to humans by biting the mucus membrane of peripheral area of the lips, filling the area with blood, and then filling he bites with feces containing trypanosome
Chaga's
85
Reduviid Bug
Kissing Bug, Assassin Bug
86
T/F | Intestinal flagellates are all transmitted by vectors
False
87
T/F A sporosite is the result of fertilization in sporozoans
True
88
T/F | A person may acquire toxoplasmosis form cat scratch
False Litter box
89
A round shaped trophozoite of a sporozoan characterized by the presence of single ring forms in red blood cells and crescent shaped gametocyte is:
plasmodium falciparum
90
A blood parasite that invades all age's blood cells and is characterized by single ring form
Plasmodium
91
Where do undeveloped eggs of whip worm complete their development?
In the human intestine
92
Which on of the following worm form fine filariform larvae
Hookworm
93
How does the hook worm inject the human body
cut on bare foot | hair follicle??? also???
94
Number of worms in the intestinal tract is the
worm burden/load
95
Common Name for ancylostoma braziliense is
Dog and Cat Hookworm
96
The parasitic organism most commonly associated with waterborne outbreaks of diarrhea in Georgia
Cryptosporidium parvum
97
largest adult intestinal round worm
Ascaris lumbricoides (Ascariasis)
98
Trichinella spiralis is an intestinal worm that humans are accidental host, transmission of worm occurs by:
eating undercooked pork or bear
99
Since infection with toxoplasmosis during pregnancy may cause embryonic or fetal damage, pregnant women should avoid contact with
cat feces
100
The intermediate host for Plasmodium malaria is
Human
101
Infection with Enterobius vermicularis is best diagnosed by?
Examination of cellophane tape preparation for eggs

Parasitology: Micro 2 (4 decks)

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