Biological Classification And System Of Classification Question 490
Question: In malaria, shivering occurs when
[MP PMT 1987, 89]
Options:
A) Schizonts enter R.B.C.
B) Sporozoites enter human body
C) Merozoites are liberated from R.B.C. alongwith toxin
D) Signet ring stage is attained
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Answer:
Correct Answer: C
Solution:
Each merozoite can infect a red blood cell. Within the RBCs, the merozoite matures either into a uninucleated gametocyte, the sexual stage, infectious for Anopheles mosquitoes.
The fever and the shivering are associated with the rupture of erythrocytic-stage schizonts.
In severe malaria, parasitized RBCs may obstruct capillaries and postcapillary venules, leading to local hypoxia and the release of toxic cellular products.
BETA
