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 [...]
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% [...]