Exercise No. 6d PROTOZOA Phylum Ciliophora Flashcards
trophozoite: equipped with a funnel-shaped cytostome on the anterior end, and a cytopyge on the posterior end
Balantidium coli
trophozoite: entire body surface is covered with cilia that tend to be longer near the cytostome
Balantidium coli
trophozoite: rotary, boring motility
Balantidium coli
trophozoite: Two contractile vacuoles are located in the granular cytoplasm, although sometimes only one is readily visible
Balantidium coli
trophozoite: cytoplasm may also contain food vacuoles, as well as ingested bacteria
Balantidium coli
trophozoite: tapers at the anterior end and the posterior end is broadly rounded
Balantidium coli
cyst: spherical to oval; 44 to 65 µm
Balantidium coli
cyst: micronucleus may not be observed in wet or permanent preparations
Balantidium coli
cyst: thick, protective cyst wall that surrounds the organism
Balantidium coli
cyst: row of cilia may be visible embedded within the cyst wall esp. in young cysts
Balantidium coli
cyst: Mature cysts tend to lose their cilia.
Balantidium coli
size and shape: ovoid to sac-shaped
Balantidium coli
nucleus: 2 large nuclei; a large, often kidney bean–shaped macronucleus, and lying in its concavity a small round micronucleus
Balantidium coli
Trophozoites are found in diarrhea.
Balantidium coli
Unstained wet mount of trophozoites reveals cilia that effect rotary motion to the parasite.
Balantidium coli
Cysts are found in semi-formed or formed stool.
Balantidium coli
Wet mount preparation and permanent-stained smear of material obtained by [?] reveals trophozoite stages of B. coli.
sigmoidoscopic examination
