MICROPARA MIDTERMS

Question 1

a living organism, which takes its nourishment
and other needs from a host;

Answer 1

parasite

Question 2

an organism which supports the parasite.

Answer 2

host

Question 3

parasitic organism that lives on the outer surface of its host with examples

Answer 3

Ectoparasite
-lice, mites, ticks

Question 4

parasites that live inside the body of their host with examples

Answer 4

Endoparasite
Entamoeba histolytica

Question 5

This parasite is completely dependent on the host during a segment or all of its life cycle.

Answer 5

Obligate Parasite

Question 6

an organism that exhibits both parasitic and non-
parasitic modes of living and hence does not absolutely depend on the parasitic way of life. Capable of adapting to its place.

Answer 6

Facultative Parasite

Question 7

when a parasite attacks an unnatural host and survives.

Answer 7

Accidental Parasite

Question 8

is one that wanders in to an organ in which it is not usually found.

Answer 8

Erratic Parasite

Question 9

host that harbors a parasite in the adult stage or where the parasite
undergoes a sexual method of reproduction.

Answer 9

Definitive Host

Question 10

harbors the larval stages of the parasite or an asexual cycle of development takes place.

Answer 10

Intermediate Parasite

Question 11

a host that serves as a temporary refuge and vehicle for reaching an
obligatory host, usually the definitive host

Answer 11

Paratenic Host

Question 12

a host that makes the parasite available for the transmission to
another host and is usually not affected by the infection

Answer 12

Reservoir Host

Question 13

a host that is naturally infected with certain species of parasit

Answer 13

Natural Host

Question 14

a host that is under normal circumstances not infected with the parasite

Answer 14

Accidental Parasite

Question 15

Three Common
Symbiotic
Relationship

Answer 15

-Mutualism
-Commensalism
-Parasite Destruction

Question 16

an association in which both partners are
metabolically dependent upon each other and
one cannot live without the help of the other;

Answer 16

Mutualism

Question 17

an association in which the commensal takes the benefit
without causing injury to the host.

Answer 17

Commendalidm

Question 18

an association where one of
the partners is harmed and
the other lives at the expense
of the other.

Answer 18

parasitism

Question 19

Direct effects of the parasites on the host

Answer 19

-Mechanical injury
-Deleterious effect of toxic substances
- Deprivation of nutrients, fluids and metabolites

Question 20

Indirect effects of the parasites on the host

Answer 20

-Immunological reaction: Tissue damage
-Excessive proliferation of certain tissues

Question 21

includes size, shape, color and position of different organelles
in different parasites at various stages of their development.

Answer 21

morphology

Question 22

importance of morphology

Answer 22

important in laboratory diagnosis which
helps to identify the different stages of development and
differentiate between pathogenic and commensal organisms.

Question 23

Geographical Distribution —