Q113 / 120 · NEET 2010 (Mains) · Zoology

A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when the

  • A
    sporozoites released from $\mathrm{RBCs}$ are being rapidly killed and broken down inside spleen
  • B
    trophozoites reach maximum growth and give out certain toxins
  • Correct answer
    C
    parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
  • D
    microgametcytes and megagametocytes are being destroyed by the WBCs

Solution

In malaria, chill and fever is due to the release of a toxic substance haemozoin, formed by breakdown of haemoglobin present in RBCs. It will be released after the rupture of RBCs in erythrocytic schizogony.

Hence, the correct answer is option: 'C'.

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