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 nine types of common laboratory media. The types are: 1. Peptone Water 2. Nutrient Broth 3. Glucose Broth 4. Sugar Media 5. Urea Medium 6. Glycerol Saline Transport Medium 7. Cary Blair Medium 8. Stuart's Transport Medium 9. Venkatraman-Ramakrishnan (VR) Medium. Common Laboratory Media: Type # 1. Peptone Water: Contains 1% peptone and 0.5% [...]
The following points highlight the top six methods for isolation of bacteria in pure culture. The methods are: 1. Streaking or Plating 2. Dilution and Plating 3. Use of Selective Medium 4. Differential Sterilisation by Chemicals 5. Differential Sterilisation by Heat 6. Inoculation of a Susceptible Animal. Isolation of Bacteria: Method # 1. Streaking or Plating: If the material containing [...]