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Biology · 2022 · 3 marks
CBSE 2022 · Region 3 · Set 3 · Q7
Plasmodium enters the human body through the bite of infected female Anopheles. Trace its life cycle till the onset of malaria in human.
Plasmodium enters the human body through the bite of infected female Anopheles. Trace its life cycle till the onset of malaria in human.
Marking-scheme solution
//When mosquito carrying sporozoites bites a human, sporozoites are injected in human body.
Sporozoites reach the liver through blood
Parasites reproduce asexually in liver cells , burst these cells and get released into blood.
Parasite enters RBCs and reproduce asexually, RBCs burst (releases haemozoin) which causes cycles of fever and chill.
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CBSE Class 12 Biology past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.