Biosynthesis, Regulation and Functions of Triacylglycerols (TAG)
What is Triacylglycerol (TAG)? Fatty acids and glycerol are the end products of digestion of lipids in our body. Fatty acids are organic acids whereas […]
Microbiology
Cryptosporidium parvum (Morphology, Life cycle, Pathogenesis, Clinical manifestation, Lab diagnosis, Treatment and Prevention and Control)
Cryptosporidium is an intestinal coccidian parasite, which causes infection of the small intestine. Numerous species of Cryptosporidium are known to affect amphibians, fish, birds and […]
Krebs cycle or Citric Acid Cycle or TCA cycle
The cycle is named variously as citric acid cycle or tri-carboxylic acid cycle (TCA cycle), because citric acid is the starting compound of the cycle […]
Benedict’s Test: Principle, Requirements, Procedure and Result Interpretation
A sugar consists of an anomeric carbon to which a functional group is attached. If the anomeric carbon consists of aldehyde as a functional group, […]
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 […]
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. […]
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 […]