What is the meaning of protozoa


Protozoa are unicellular organisms that live as parasites.

In terms of their cell structure, they have similarities with animal cells: like these, they have a cell nucleus and also cell organelles such as mitochondria and the Golgi apparatus. Many protozoa have flagella with which they can move.

In contrast to bacteria, which have no real nucleus and therefore count among the prokaryotes, the protozoa are counted among the eukaryotes.

A special property of the protozoa is their special ability to adapt to the most varied of living conditions. The reproduction can take place sexually or asexually.

Protozoa can be transmitted from host to host in different ways. For example, permanent stages (cysts) that are very resistant to environmental influences can be transmitted via the faeces of humans or animals or via an intermediate host. Hosts in which protozoa reproduce asexually are called Betweenhost. If sexual reproduction takes place in the host, he will Endhost called.

Protozoa infection is the active or passive penetration of protozoa (single-celled animals) into an organism, their reproduction there and the subsequent reaction of the organism in the form of a disease. If at least one of the three characteristics is missing, it is called an infestation.

Protozoa include sporozoa (spore animals) such as malaria pathogens Plamodium vivax, P. falciparum, P. ovale and P. malariae as well as the rhizopods and various amoebas. Other protozoa are the flagellates.