Rhizosphere

The rhizosphere is a term which was first introduced by a scientist L.Hiltner. The rhizosphere is the region that is a few distances (2-80mm) extended from the root system. This zone favours the physical and chemical activity of microorganisms and responsible for the intense microbial activity. The rate of microbial activity strongly influences by the …

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Difference Between Passive and Active Transport

Passive and active transport are the cell transfer mechanisms which helps in the transportation of molecules or ions. The significant differences between passive and active transport are due to the two properties like the movement of particles and the use of ATP. The movement of particles: Movement of particles from high to low concentration occurs …

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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 …

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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 …

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Difference Between Antigen and Antibody

The significant differences: The Antigen and Antibody are the protein structures which shows a significant difference 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 …

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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 …

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