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
