micropara

Question 1

study of parasites

Answer 1

parasitology

Question 2

Organisms that live on and obtain their nutrients from
another organism

Answer 2

parasites

Question 3

type of parasite that cannot survive outside a host

Answer 3

obligatory parasite

Question 4

Parasite that is capable of existing independently of a host

Answer 4

facultative parasite

Question 5

Parasite that is established inside of a host; causes
INFECTION

Answer 5

ENDOparasite

Question 6

Parasite that is established in or on the exterior surface of a
host; causes INFESTATION

Answer 6

ECTOparasite

Question 7

Host other than the normal one that is harboring a parasite

Answer 7

accidental/incidental host

Question 8

Host in which the adult or sexual phase of parasite
development occurs

Answer 8

definitive host

Question 9

Host in which the larval or asexual phase of parasite
development occurs

Answer 9

intermediate host

Question 10

Host harboring parasites that are parasitic for humans and
from which humans may become infected

Answer 10

reservoir host

Question 11

Host responsible for transferring a parasite from one
location to another

Answer 11

transport host

Question 12

Parasite-harboring host that is not exhibiting any clinical
symptoms but can infect others

Answer 12

CARRIER

Question 13

Association of two different species of organisms that is
beneficial to one and NEUTRAL to the other

Answer 13

commensalism

Question 14

Association of two different species of organisms that is
BENEFICIAL to both

Answer 14

MUTUALISM

Question 15

Living together; the association of two living organisms,
each of a different species

Answer 15

SYMBIOSIS

Question 15

Association of two different species of organisms that is
BENEFICIAL to one at the other’s expense

Answer 15

PARASITISM

Question 16

The association between two different organisms in which
one benefits and has a neutral effect on the other

Answer 16

COMMENSAL

Question 17

Parasite that has demonstrated the ability to cause disease

Answer 17

PATHOGENIC

Question 18

single celled parasites

Answer 18

amoeba
flagellates
cilliates
sporozoans

Question 19

multicellular parasites

Answer 19

roundworms
flukes
tapeworms

Question 20

t or f: protozoans have cell wall

Answer 20

false! no cell wall

Question 21

Unicellular organisms, Animal-like protists

Answer 21

protozoans

Question 22

name the 2 regions of cytoplasm ng protozoans

Answer 22

ECTOPLASM (OUTER)
AND
ENDOPLASM (INNER)

Question 23

T OR F: protozoan have no nucleus

Answer 23

false! Contains at least one, and some several nuclei

Question 24

protozoans have special organs for locomotion

Answer 24

true, they are motile

Question 25

Diagnosis is made by microscopic examination of blood
and CSF and serologic testing

occurs mainly in Africa and South
America

Answer 25

trypsonoma sp.

Question 26

Causes African trypanosomiasis or sleeping sickness,

Answer 26

Trypanosoma brucei

Question 27

Causes Chagas disease or American trypanosomiasis,

Mostly found in South America

Answer 27

trypanosoma cruzi

Question 28

East African sleeping sickness

Answer 28

trypanosoma brucei rhodesiense

Question 29

West African sleeping sickness

West and Central Africa

Answer 29

Trypanosoma brucei gambiense

Question 30

t or f: Tsetse fly is vector of trypanosoma brucei g and r

Answer 30

true

Question 31

t or f: Reduviid bug is a vector of trypanosoma cruzi or kissing bugs

Answer 31

true

Question 32

t or f: Romana’s sign can develop, delayed sensation to pain.

Answer 32

false kerandal’s sign yon! under kay trypanosoma brucei gambiense

romana is swelling of eye area

Question 33

Diagnosis: Finding the amastigote in the blood or tissue and
serologic testing

Mainly a disease of Africa, Eastern Europe, and
South/Central America

Answer 33

leishmania sp.

Question 34

Old World cutaneous leishmaniasis, Baghdad boil, Delhi
boil

occurs in Middle east, North africa

Answer 34

leishmania tropica

Question 35

Mucocutaneous leishmaniasis

mexico, central and south america

Answer 35

leishmania braziliensis

Question 36

Visceral leishmaniasis, dumdum fever, kala-azar

Africa, India, Middle East, Far East

Answer 36

leishmania donovani

Question 37

Only ciliate pathogenic to humans
Largest protozoan of humans

Answer 37

Balantidium coli

Question 38

Ingestion of oocysts in fecally contaminated food or water Oocysts in feces. Transparent. 1–2
sporoblasts.

Answer 38

Isospora belli (also known as Cystoisospora belli)

Question 39

Contaminated food and water
Oocysts in direct wet mount
● variable staining with modified
acid-fast stain.
● Autofluorescence under UV light

Answer 39

Cyclospora cayetanensis

Question 40

● Actively multiplying
○ Replication is rapid
● Crescent-shaped
● One central nucleus
● Infectious form of
Taxoplasma gondii

Answer 40

TACHYZOITE

Question 41

● These slow-growing
viable forms gather in
clusters inside a host
cell, develop a
surrounding
membrane, and form a
cyst in a variety of
host tissues and
muscles outside the
intestinal tract
● Has the same physical
appearance as the
tachyzoite, only
smaller
● Dormant stage (slow
growing)

Answer 41

BRADYZOITE