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Question
The vector for Entamoeba histolytica is
The vector for Entamoeba histolytica is
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Solution
The correct option is C None of the above
Entamoeba hislolytica causes amoebic dysentary or amoebiasis in man. The mode of infection is contamination through food and water. The infective stage is tetranucleate cyst. They live in tissues of caecum and colon of large intestine. Cysts pass along with food into the small intestine. By the action of enzymes, the wall of cyst is ruptured. The cysts emerge out. This process is called as excystment. After excystment, the parasite is referred as metacystic form. This metacyst enters into the lumen of large intestine. Here, four nuclei undergoes fission resulting into the formation of 8 nuclei. Thus, the correct answer is option D.
Entamoeba hislolytica causes amoebic dysentary or amoebiasis in man. The mode of infection is contamination through food and water. The infective stage is tetranucleate cyst. They live in tissues of caecum and colon of large intestine. Cysts pass along with food into the small intestine. By the action of enzymes, the wall of cyst is ruptured. The cysts emerge out. This process is called as excystment. After excystment, the parasite is referred as metacystic form. This metacyst enters into the lumen of large intestine. Here, four nuclei undergoes fission resulting into the formation of 8 nuclei.
Thus, the correct answer is option D.
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