Introduction to Parasitology

Question 1

Host parasite relation: living together

Answer 1

Symbiosis

Question 2

Host parasite relation: beneficial to both organisms

Answer 2

Mutualism

Question 3

Host parasite relation: beneficial to one organisms, neutral to other

Answer 3

Commensalism

Question 4

Host parasite relation: beneficial to one organism, harmful to the other

Answer 4

Parasitism

Question 5

Adult or sexual stage of parasite

Answer 5

Definitive

Question 6

Larval or asexual stage of a parasite

Answer 6

Intermediate

Question 7

Parasite that does not develop but remains alive and is infective to the next host

Answer 7

Paratenic / Transport

Question 8

Parasite’s life cycle continues and serves as a source of human infection

Answer 8

Reservoir

Question 9

Depends entirely upon host for existence

Answer 9

Obligate

Question 10

Capable of parasitic and free-living existence

Answer 10

Facultative

Question 11

Larval stage is passed in a host, Adult is free living. (1 host)

Answer 11

Transitory

Question 12

Completes a life cycle in 1 host

Answer 12

Permanent

Question 13

Requires 2 or more hosts

Answer 13

Periodic

Question 14

Infects animals and may be acquired by man

Answer 14

Zoonotic

Question 15

Occurs in an unusual organ or habitat

Answer 15

Erratic

Question 16

Occurs in an unusual host

Answer 16

Accidental

Question 17

Passes the intestinal tract without causing any disturbance

Answer 17

Spurious / Coprozoic

Question 18

Lives inside the body; Invasion is called

Answer 18

Endoparasite, Infection

Question 19

Lives outside the body; Invasion is called

Answer 19

Ectoparasite, Infestation

Question 20

Visits the host only during feeding time

Answer 20

Intermittent Parasite

Question 21

Transmits a parasite only after the latter has complete part of its development

Answer 21

Biologic

Question 22

Responsible only for transporting the parasite.

Answer 22

Mechanical / Phoretic

Question 23

Parasites transmitted: Plasmodium spp., W. bancrofti, B. malayi

Answer 23

Mosquitoes

Question 24

Parasites transmitted: Leishmania spp., T. brucei, filariae

Answer 24

Biting flies

Question 25

Parasites transmitted: Trypanosoma cruzi

Answer 25

Kissing bugs

Question 26

Parasites transmitted: Babesia spp.

Answer 26

Ticks

Question 27

Parasites transmitted: Mechanical vectors of A. lumbricoides and other enteric parasites

Answer 27

Cockroaches, House flies

Question 28

What are the portals of entry?

Answer 28

Mouth/oral cavity, Skin, Urogenital tract, Nasal passages, Transplacental

Question 29

What are the portals of exit?

Answer 29

Anus, Mouth, Urogenital tract, Non-intact skin

Question 30

what autoinfection is the production of infective forms in the small intestine?

Answer 30

Internal Autoinfection

Question 31

Taxon to which the species belongs

Answer 31

Genus

Question 32

Trivial name that distinguishes the species within the genus

Answer 32

Specific Epithet

Question 33

Classification of Protozoa

Answer 33

Phylum Sacromastigophora, Ciliophora, Apicomplexa

Question 34

Classification of other Unicellular Parasites

Answer 34

Blastocystitis spp., and Microsporidians

Question 35

Classification of Helminths

Answer 35

Phylum Nemathelminthes and Platyhelminthes

Question 36

Classification of Arthropods

Answer 36

Class Arachnida, Insecta, Crustacea