Q. A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when?
A) The sporozoites released from RBCs are being rapidly killed and broken down inside spleen
B) The trophozoites reach maximum growth and give out certain toxins
C) The parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
D) The microgametocytes and megagametocytes are being destroyed by the WBCs
Explanation
[Solution from source] Plasmodium multiplies asexually inside RBCs and then bursts them, releasing new merozoites to infect fresh RBCs along with the toxin haemozoin. This bursting happens in cycles (every 48 hours in vivax), which is when the chill and high fever recur. Sporozoites enter through the mosquito bite and go to the liver, not RBCs. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.