What is the life cycle of plasmodium?
The life cycle of *Plasmodium*, the parasite that causes malaria, involves two hosts: humans and female *Anopheles* mosquitoes.
1. Human phase (asexual reproduction):
- An infected female *Anopheles* mosquito bites a human and injects sporozoites into the bloodstream.
- Sporozoites travel to the liver and mature into schizonts.
- Schizonts rupture, releasing merozoites into the bloodstream.
- Merozoites invade red blood cells and develop into trophozoites.
- Trophozoites consume hemoglobin, grow, and divide, producing more merozoites.
- This asexual cycle repeats, causing symptoms of malaria such as fever, chills, and anemia.
2. Mosquito phase (sexual reproduction):
- When an infected human is bitten by an *Anopheles* mosquito, gametocytes (sexual forms) are ingested.
- In the mosquito's gut, gametocytes mature into male and female gametes (microgametes and macrogametes).
- Fertilization occurs, forming a zygote.
- The zygote develops into an ookinete, which penetrates the mosquito's midgut wall.
- Ookinetes develop into oocysts, which contain sporozoites.
- Sporozoites migrate to the mosquito's salivary glands and are ready to be injected into a new human host when the mosquito bites again.
The life cycle of *Plasmodium* is essential for its transmission and survival within human and mosquito populations.