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Question

The infective state of malarial parasite Plasmodium that enters human body is

A
Merozoite
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B
Sporozoite
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C
Trophozoite
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D
Minuta form
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Solution

The correct option is B Sporozoite
  • When the mosquito bites humans it ingests blood cells containing gametocytes.
  • The mosquito digests the blood cells, releasing the male and female gametes, which fuse together and burrow into the mosquito’s gut wall, where they mature inside oocysts.
  • After 8-15 days (depending on the species) the oocysts burst and sporozoites are released into the body cavity of the mosquito.
  • From there, they travel to the salivary glands. when the mosquito bites these infective sporozoite enters the blood of the humans.
  • Hence sporozoites are the infective stages of the malaria parasite is found in salivary glands of the mosquitoes.
  • So, option B is correct here.


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