Скачать или смотреть Apicomplexans | life cycle of plasmodium | class 11

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This lecture is about
Apicomplexans
Apicomplexans are a large group of parasitic protozoa, some of which cause serious diseases such
as malaria in humans. Apicomplexans lack speciic structures for locomotion but move by lexing.
At some stage in their lives, they develop a spore, a small infective agent transmitted to the next
host. Many Apicomplexans spend part of their life in one host and part in a diferent host species
(Fig. 7.7).
Plasmodium, the apicomplexan that causes malaria, enters human blood through the bite of an
infected female Anopheles mosquito. Plasmodium irst enters liver cells and then red blood cells,
where it multiplies. When each infected red blood cell bursts, many new parasites are released.
The released parasites infect new red blood cells, and the process is repeated. The simultaneous
bursting of millions of red cells causes the symptoms of malaria; a chill, followed by high fever
caused by toxic substances that are released and afect other organs of the body (Fig. 7.7).