Capsule staining: Principle, Requirements, Procedure and Microscopic Examination
Capsule staining is a differential technique commonly used in light microscopy. A capsule is a gelatinous layer which lies immediately exterior to the cell wall […]
Month: October 2020
Acid-fast staining or Ziehl-Neelsen staining : Principle, Requirements, Procedure and Microscopic Examination
Acid-fast staining is one of the differential staining techniques commonly used for light microscopic examination of bacteria. It differentiates acid-fast bacteria from non-acid fast bacteria. […]
Ligand and its types in a Co-ordination or Complex compound
A compound in which a metal atom or ion is co-ordinated to two or more anions or neutral molecules is called co-ordination or complex compound. […]
Gram staining: Principle, Requirements, Procedure and Microscopic Examination
Gram staining is a differential staining technique that is used for microscopic examination of bacteria. In differential staining, specimen is subjected to a series of […]
Staining: Purpose, Mechanism and Dyes/Stains used in light microscopy
Purpose of staining: In bright field or light microscopy, background appears bright and the microorganisms appear dark as they absorb some of the light. However, […]
Normal microbial flora and their Roles in the Human Body
The term “normal microbial flora” denotes the population of microorganisms that inhabit various body parts like skin and mucous membranes of healthy normal persons. Our […]
Structure and Functions of three major types of Ribonucleic Acid (RNA)
RNA is a type of nucleic acid found inside living cells. It is a polymer of ribonucleotides. One molecule of ribonucleotide consists of: Ribose sugar […]