Class Infusoria

Class Infusoria – Locomotory ogan: Cillia. 2 nucleus types: micro and macro nucleus. Micro is reproductive and macro is vegetative. Food enter to peristome through cilia à Cytopharynx à Cytoproct Reproduction: Asexually by binary fission, Sexually by conjugation
10) Blantidium coli	Morphology: Egg shaped. Pointed at the front and round at the back. two nuclei are present : One sausage shaped macronucleus and one micronucleus.	Life Cycle: Parasite in the large intestine of man, monkeys, pig. Reproduction by transverse binary fission. Occasionally, 2 blantidia conjugation. Also forms thick walled cyst but NO multiplication takes place in cyst. Usually carried by pigs. * Life cycle identical to that of E. histolytica.	Diagnosis: Causes ulceration of the large intestine which may cause haemorrhage and diarrhea. Trophozoites rather than cysts are found in stool.	Disease: Blantidiasis