Supriya N

Cyanobacteria

Definition: Cyanobacteria represents the major group of photosynthetic bacteria that carry out oxygenic photosynthesis. It releases oxygen and uses water as an electron-donating substrate, i.e. splits water molecule to release oxygen. Other than this, they are also capable of nitrogen-fixing. Classification of Cyanobacteria Kingdom: Monera Division: Eubacteria Class: Cyanobacteria Examples: Nostoc sp., Oscillotoria sp., Spirulina …

Cyanobacteria Read More »

Spoilage of Milk

Definition: Any undesirable change or deterioration in the quality of milk refers as Spoilage of milk. These changes can be like change in appearance, colour, odour, taste etc. Milk contains complex biochemical composition and high water activity, and this provides an excellent culture medium for the growth and multiplication of microorganisms which leads to serious …

Spoilage of Milk Read More »

Difference Between Antigen and Antibody

Difference between antigen and antibody is mainly due to the significant differences between the following factors like functional role, specificity factor and foreignness. Functional role: Antigen incites the immune system, whereas the antibody produced in response to a specific antigen. Specificity factor: Both antigen and antibody are specific, but the specificity of antigen is due …

Difference Between Antigen and Antibody Read More »

Staining

Definition: Staining is a supplementary method that gives divergence to the microscopic image for better vision under the microscope. It is a technique that is widely used for the examination of cells, tissues and cellular components. There are a variety of staining methods like simple, differential and special staining that are used in labs to …

Staining Read More »