Week Six: Protista

Question 0

What are protozoans?

Answer 0

Unicellular, microscopic, most are free living

Question 1

What are the four phyla under Protista?

Answer 1

Flagellated protozoans
Ameboid protozoans
Apicomplexans
Ciliated protozoans

Question 2

What are the two kingdoms protozoa fall under?

Answer 2

Animalia and protista

Question 4

What are the most important phylums in veterinary parasitology?

Answer 4

Sarcomastugophora (flagellates and amoebae)
Ciliophora (ciliates)
Apicomplexa (coccidia, malarial organisms, piroplasms)

Question 4

Flagellates only move in..

Answer 4

Liquid/fluids

Question 5

Mastigophora Flagellates:

Kingdom, phylum, subphylum

Answer 5

Kingdom: Protista
Phylum: Sarcomastigophora
Subphylum: Mastigophora

Question 6

What do flagellates look like?

Answer 6

Pear/bullet shaped

Question 7

What are some examples of flagellates?

Answer 7

Leishmania
Trypanosoma
Trichomonas
Histomonas
Giardia spp.

Question 8

Sarcodina Amoebae

Kingdom, phylum, superclass

Answer 8

Kingdom: Protista
Phylum: Sarcomastigophora
Superclass: sarcodina

Question 9

How do amoebae move?

Answer 9

By their pseudopodia

Question 10

What are the two forms of amoebae?

Answer 10

Trophozoite (mobile)

Cyst (resistant, survives in adverse conditions in the external environment)

Question 12

What do amoebae look like?

Answer 12

Blob like, amorphous

Question 12

What is entamoeba coli?

Answer 12

Non pathogenic amoeba found in humans and pigs

Question 13

What is the most important parasitic amoeba of humans?

Answer 13

Entamoeba histolytica

Question 14

Ciliophora ciliates

Kingdom, phylum, morphology, how do they move

Answer 14

Kingdom: Protista
Phylum: ciliphora

Have two types of nuclei (macro and micro)
Movement through cilia

Question 15

What are the two forms of ciliphora ciliates?

Answer 15

Trophozoite (dart, twirl speedily in liquid media)

Cyst

Question 16

Apicomplexa apicomplexans

Kingdom, phylum, who do they parasitize, location in body

Answer 16

Kingdom: Protista
Phylum: apicomplexa
Domesticated animals
Found in intestines and blood cells

Question 17

What is different about apicomplexa apicomplexans?

Answer 17

Complex life cycles, no visible locomotory organelles

Question 18

What do apicomplexa look like?

Answer 18

Banana, comma, boomerang

Question 19

Toxoplasma is an example of what Protozoa?

Answer 19

Apicomplexa apicomplexans

Question 20

What are the most diverse and most complicated protozoans?

Answer 20

Apicomplexa apicomplexans

Question 21

Flagellates
Parasite: Giardia spp.
Host, location, transmission route, common name

Answer 21

Host: dogs, cats, horses, ruminants, exotics
Location: intestinal mucosa
Transmission route: ingestion of oocysts
Common name: Giardia

Question 22

Amoebae
Parasite: Entamoeba histolytica
Host, location, transmission route, common name

Answer 22

Host: dogs, cats, primates, humans
Location: large intestines
Transmission route: ingestion of cysts
Common name: entamoeba

Question 23

Ciliates
Parasite: Balantidium coli
Host, location, transmission route, common name

Answer 23

Host: dogs and cats
Location: cecum and colon (large intestine of swine*)
Transmission route: ingestion of cysts
Common name: Balantidium

Question 24

Apicomplexans Parasite: Cystoisospora spp. Host, location, transmission route, common name

Answer 24

Host: dogs, cats, and swine Location: small intestines TR: ingestion of oocysts CN: Coccidia

Question 25

Apicomplexans Parasite: Toxoplasma Gondii Host, location, transmission route, common name

Answer 25

Host: feline Location: intestines TR: ingestion of sporulated oocysts CN: Toxoplasma

Question 26

Apicomplexans Parasite: Cryptosporidium spp Host, location, transmission route, common name

Answer 26

Host: dogs, cats, sheep, swine, birds, guinea pigs, snakes, mice Location: Small intestine TR: ingestion of oocytes CN: cryptosporidium

Question 27

Apicomplexans Parasite: Sarcocystis spp. Host, location, transmission route, common name

Answer 27

Host: dogs and cats Location: small intestine TR: ingestion of muscles of horses, pigs, and ruminants CN: Sarcocystis

Question 28

Flagellates Parasite: Leishmania spp. Host, location, transmission route, common name

Answer 28

Host: dog Location: capillaries and spleen, internal organs, WBC TR: bite of infective intermediate host (phlebotomine sand fleas) CN: leishmania

Question 29

Flagellates Parasite: Trypanosoma Cruzi Host, location, transmission route, common name

Answer 29

Host: humans and dogs Location: peripheral blood TR: ingestion of intermediate host or feces of bug left on final host CN: Trypanosome

Question 30

Apicomplexans Parasite: Cytauxzoon felis Host, location, transmission route, common name

Answer 30

Host: cats Location: RBC TR: bite from infective intermediate host (tick) CN: Cytauxzoon

Question 31

Apicomplexans Parasite: Babesia Canis Host, location, transmission route, common name

Answer 31

Host: dogs Location: RBC TR: bite of infective intermediate host (tick) CN: Babesia

Question 33

Apicomplexans Parasite: Hepatozoon Canis, americanum Host, location, transmission route, common name

Answer 33

Host: dogs Location: WBC, endothelial cells (spleen, bone marrow, liver) TR: ingestion of infective intermediate host (tick) CN: Hepatozoon