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a. Name the respective forms in which the malarial parasite gains entry into (i) Human body and (ii) Body of female Anopheles. b. Name the hosts where the sexual and the asexual reproductions of malarial parasites occur respectively. c. Name the toxin responsible for the appearance of symptoms of malaria in humans. Why do these symptoms occur periodically? |
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Answer» a. i. Sporozoite ii. Gametocytes. b. Sexual reproduction occurs in mosquito and asexual reproduction takes place in human body. c. Haemozoin. Parasites after entering the fresh RBCs take 48 to 72 hours to complete the erythrocytic cycle, rupturing the erythrocytes. They then burst to release toxic substance called haemozoin and the symptoms like chill and high fever occurs periodically |
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