general characteristics

Question 1

All trematodes have simple, unbranched intestines EXCEPT:

Answer 1

Fasciola spp

Question 2

All are hermaphroditic except

Answer 2

Schistosoma

Question 3

All trematodes have paired testes located on the posterior portion of the body except

Answer 3

Schistosoma

Question 4

All trematodes are:

• dorsoventrally flattened
• have operculated ova
• have 2nd intermediate hosts
• have the metacercaria as the infective stage
• are acquired through eating raw 2nd intermediate host
• have redia (and metacercaria) stage

except

Answer 4

Schistosoma bitch

Question 5

All lay EMBRYONATED EGG except

Answer 5

Paragonimus
Echinostoma
Fasciola
Fasciolopsis
Artyfechinostomum
Gastrodiscoides

Question 6

Everything in Fasciola gigantica is bigger than that of Fasciola hepatica EXCEPT for the

Answer 6

shoulder

Question 7

Basically Clonorchis and Opisthorchis share the same morphology EXCEPT

Answer 7

testes

Question 8

has the same appearance for amoeba

Answer 8

E. histolytica
E. dispar
E. hartmanni

Question 9

All members of the Amoeba group have cystic stages except?

Answer 9

Entamoeba gingivalis

Question 10

All have multinucleated cysts except

Answer 10

Entamoeba polecki

Question 11

Host specific, EXCEPT

Answer 11

Toxoplasma gondii

Question 12

The mode of transmission of most trematodes are food-borne except

Answer 12

Schistosoma why? SKIN PENETRATION!!

Question 13

Elongated, unsegmented and cylindrical bodies

Answer 13

nematodes

Question 14

Protected by cuticle from gastric acid and digestive enzyme

Answer 14

nematodes

Question 15

parasites that are soil transmitted

Answer 15

Ascaris lumbricoides
Trichuris trichiura
Hookworms
Strongyloides stercoralis

Question 16

parasites that are food-borne:

Answer 16

Capillaria philippinensis
Hookworms - Ancylostoma duodenale
trematodes except Schistosoma

Question 17

Larval lung migration

Answer 17

Ascaris lumbricoides
Hookworm
Strongyloides stercoralis

Question 18

Autoinfection:

Answer 18

hymenolepis nana
taenia solium
capillaria philipinensis
strongyloides stercoralis
enterobius vermicularis

Question 19

treatment as ivermectin

Answer 19

Mansonella streptocerca

Strongyloides stercoralis

Question 20

All have multinucleated cysts except

Answer 20

Entamoeba polecki
Iodamoeba butschlii
Chilomastix mesnili

Question 21

facultative parasites

Answer 21

strongyloides stercoralis
Naegleria fowleri
Acanthamoeba castellani

Question 22

variation in the life cycle: same life cycle in plasmodium spp

Answer 22

vivax & ovale

malariae & falciparum

Question 23

has the same affected RBC in plasmodium spp

Answer 23

plasmodium ovale & vivax (bc of having the same lifecycle)

Question 24

has the same length of erythrocytic schizogony in plasmodium spp

Answer 24

ovale and vivax

Question 25

resembles P. knowlesi

Answer 25

P. falciparum

P. malariae

Question 26

parasites as mode of transmission is skin penetration

Answer 26

strongyloides stercoralis
schistosoma spp
hookworm

Question 27

phylum mastigophora

Answer 27

flagellates

Question 28

phylum sarcodina

Answer 28

amoeboids

Question 29

phylum ciliata

Answer 29

ciliates

Question 30

troph or cyst:

• Active
• Dividing by binary fission
• Moving
• Causes damage to tissues
• Feeding

Answer 30

trophozoites

Question 31

troph or cyst:

• Inactive
• Resistant
• Thick walled
• Nonfeeding
• Infectious
• Chromatoidal bar

Answer 31

cyst

Question 32

has the hypnozoites stage in their cycle

Answer 32

vivax and ovale