PATHOLOGY MCQ
PARASITIC DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why are protozoan parasites so common in animals?
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Animals have to drink water, and in nature water can easily become contaminated via the fecal route.
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There are a lot of animals and a lot of protozoans so it is reasonable that they could come into contact with each other.
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Protozoans and Animals have the same basic cell type and the same nutritional needs-protozoans therefore ‘know’ how animal hosts work and how to exploit them.
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A lot of animals live in the tropics where a lot of protozoans live also.
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Explanation:
Detailed explanation-1: -Animal cells have a more complicated microenvironment than Protozoan unicellular organisms since they’re multicellular normally. Animal cells have centrioles, which help in cell division. Protozoans don’t have centrioles. Protozoan cells reproduce through binary fission, whereas animal cells reproduce through mitosis.
Detailed explanation-2: -Like animals, protozoa are able to move through their environment, making it possible for them to find food. Protozoa have a very simple structure, in that they are made of only one eukaryotic cell. This cell contains a membrane-bound nucleus, as well as membrane-bound organelles with specific functions.
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