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Where will you look for the sporozoites of malarial parasite?
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Important Questions on Human Health and Disease
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Study carefully the following stages of life cycle of malarial parasite i.e. Plasmodium. Arrange these stages in the correct sequence and select the correct answer.
(i) Sporozoites leave the bloodstream and enter the liver cells of man.
(ii) Sporozoites present in the salivary glands of female Anopheles mosquito are injected into the bloodstream of man.
(iii) The parasite reproduces asexually in RBCs, resulting in bursting of RBCs and causing the cycles of fever; released parasites infect new RBCs.
(iv) The parasite reproduces asexually in liver cells, ultimately causing the rupturing of cells.
(v) Two types of gametocytes i.e., microgametocytes and macrogametocytes develop in the RBCs.
(vi) Female Anopheles mosquito takes up the gametocytes with blood meal of an infected person.
(vii) Mature infective stage of the parasite i.e., sporozoites escape from intestine and migrate to the mosquito’s salivary glands.
(viii) Fertilisation and developmental stages of the parasite take place in mosquito’s stomach.
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Select the correct option showing the life cycle of Plasmodium.
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Amoebic dysentery (amoebiasis) is caused by
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Which one of the following diseases cannot be cured by taking antibiotics?
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An intestinal parasite which causes blockage of the intestinal passage and whose eggs are excreted along with the faeces of infected person is .
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Elephantiasis, a chronic inflammation that results in gross deformities is caused by
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Which of the following is affected by the infection of Wuchereria bancrofti?
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Which of the following diseases is transmitted by the bite of the female mosquito vector?
