Chapter 4

Question 1

What does heterotrophic mean?

Answer 1

acquire their nutrients from a wide variety of organic substrates

Question 2

What does saprobic mean?

Answer 2

obtain substrates from remnants of dead plants and animals in soil or aquatic habitats

Question 3

Endoplasm of protozoa

Answer 3

the granular inner region of the cytoplasm housing the nucleus, mitochondria, and food and contractile vacuoles

Question 4

Ectoplasm of protozoa

Answer 4

the clear outer layer of the cytoplasm involved in locomotion, feeding, and protection

Question 5

How do protozoa move through fluids?

Answer 5

pseudopods

Question 6

Entamoeba histolytica - category and disease

Answer 6

Amoeboid protozoa;

Amoebiasis (intestinal and other symptoms)

Question 7

Naegleria, Acanthamoeba - category and disease

Answer 7

Amoeboid protozoa;

Brain infection

Question 8

Balantidium coli - category and disease

Answer 8

Ciliated protozoa;

Balantidiosis (intestinal and other symptoms)

Question 9

Giardia lamblia - category and disease

Answer 9

Flagellated protozoa;

Giardiasis (intestinal distress)

Question 10

Trichomonas vaginalis - category and disease

Answer 10

Flagellated protozoa;

Trichomoniasis (vaginal symptoms)

Question 11

Trypanosoma brucei, T. cruzi - category and disease

Answer 11

Flagellated protozoa;

Trypanosomiasis (intestinal distress and widespread organ damage)

Question 12

Leishmania donovani, L. tropica, L. brasiliensis - category and disease

Answer 12

Flagellated protozoa;

Leishmaniasis (either skin lesions or widespread involvement of internal organs)

Question 13

Plasmodium vivax, P. falciparum, P. malariae - category and disease

Answer 13

Apicomplexan protozoa;

Malaria (cardiovascular and other symptoms)

Question 14

Toxoplasma gondii - category and disease

Answer 14

Apicomplexan protozoa;

Toxoplasmosis (flulike illness or silent infection)

Question 15

Cryptosporidium - category and disease

Answer 15

Apicomplexan protozoa;

Cryptosporidiosis (intestinal and other symptoms)

Question 16

Cyclospora cayetanensis - category and disease

Answer 16

Apicomplexan protozoa;

Cyclosporiasis (intestinal and other symptoms)

Question 17

Flatworms: phylum, body plan, classes

Answer 17

phylum Platyhelminthes
thin, segmented body
cestodes (tapeworms) and trematodes (flukes)

Question 18

Roundworms: phylum, body plan, other name

Answer 18

phylum Aschelminthes
elongated, cylindrical unsegmented body
nematodes

Question 19

what is the most developed organ in pathogenic helminths?

Answer 19

reproductive tract

Question 20

Ascaris lumbricoides - type of helminth, disease or worm

Answer 20

• intestinal nematode (roundworm)
• infective in egg (embryo) stage
• Ascariasis

Question 21

Enterobius vermicularis - type of helminth, disease or worm

Answer 21

• intestinal nematode (roundworm)
• infective in egg (embryo) stage
• pinworm

Question 22

Trichinella spiralis - type of helminth, disease or worm

Answer 22

• intestinal nematode (roundworm)
• infective in larval stage
• Trichina worm

Question 23

Onchocerca volvulus - type of helminth, disease or worm

Answer 23

• tissue nematode (roundworm)

- river blindness

Question 24

Dracunculus medinensis - type of helminth, disease or worm

Answer 24

• tissue nematode (roundworm)

- guinea worm

Question 25

Schistosoma japonicum - type of helminth, disease or worm

Answer 25

• flatworm - trematode

- blood fluke

Question 26

Taebua solium - type of helminth, disease or worm

Answer 26

• flatworm - cestode

- pork tapeworm

Question 27

Diphyllobothrium latum - type of helminth, disease or worm

Answer 27

• flatworm - cestode

- fish tapeworm