In this article we will discuss the structure and functions of pili and fimbriae. Structure of Pili and Fimbriae: Both fimbriae and pili are like flagella as both are the appendages on bacterial cell wall. They originate from cytoplasm that protrudes outside after penetrating the peptidoglycan layer of cell wall. Fimbriae are made up of 100% protein called fimbrilin or [...]
They are classified into 7 divisions, distinguished by the presence or absence of a Plasmodium or pseudo-plasmodium. Further named as Division Myxomycota (fungi with plasmodia or pseudo-plasmodia) while the majority of fungi consist of filamentous structure and named as Eumycota. Division I: Myxomycota: It consists of four classes: Class I: Acrasiomycetes: Assimilative phase is free living amoebae which unite as [...]
In this article we will discuss about the definition and classification of protozoa. Definition of Protozoa: Protozoa are minute animalcules visible only under the microscope. About 50,000 species are known so far. A protozoan is an independent eukaryotic cell i.e. a complete unicellular organism. The branch of study is called Protozoology. It was Leeuwenhoek (1677) who first of all studied [...]