Question: “Plasmodium protozoan needs both a mosquito and a human host for its (a) 26. 3 continuity.”
The correct answer is –
The Plasmodium protozoan requires both a mosquito and a human host to complete its life cycle and continue its existence. The mosquito acts as a vector and transmits the Plasmodium protozoan from an infected human to a healthy individual. Inside the mosquito, the protozoan undergoes sexual reproduction and produces sporozoites, which are injected into a human host when the mosquito feeds on human blood. These sporozoites infect the liver cells of the human host and multiply, eventually entering the bloodstream and infecting the red blood cells. Inside the red blood cells, the Plasmodium protozoan undergoes asexual reproduction, leading to the destruction of the red blood cells and the release of more protozoa into the bloodstream, causing symptoms of malaria. When another mosquito feeds on the infected human’s blood, it ingests the protozoa and the life cycle of the Plasmodium protozoan continues. Thus, both the mosquito and human hosts are required for the Plasmodium protozoan to complete its life cycle and continue its existence.
