In this article we will discuss about the Living Agents of Disease. In nature, both non-living and living agents do exist. The relationship of the living, agents with the environment has been named "ecology" (Gr. aikos — home, native land logos — science). The living agents are distributed everywhere in the environment as well as inside and on the surface [...]
In this article we will discuss about Bacteria:- 1. Definition of Bacteria 2. Characteristics of Bacteria 3. Practical Work. Definition of Bacteria: Bacteria can be defined briefly as minute microorganisms with a prokaryotic form of cellular organisation. They are usually unicellular, they may divide by binary fission and grow attached to one another in clusters, chains, filaments (hyphae) or a [...]
The following points highlight the top two staining techniques for recognition of bacteria. The techniques are: 1. Gram Stain Method 2. Ziehl Neelsen Method. Staining Technique # 1. Gram Stain Method: Before staining, the position of the smear on the slide should be confirmed by making a scratch with the help of a needle or sharp glass slide, NEVER with [...]