Archive | Biology

Forest Ecosystem is considered as an example of terrestrial ecosystem. Forests are natural plant communities with dominance of phanerogams. In India forests occupy approx.1/10 of the land area…

The difference between DNA and RNA are in DNA, deoxyribose sugar is present whereas in RNA ,ribose sugar is present…

Factors which damage the food materials during storage are by abiotic factors and biotic factors which are discussed as follows…

Bacterial cell is surrounded by a cell wall. It is made up of polysaccharides, lipids and protein. It contains a substance mucopeptide in which molecules of acetylglucosamine and acetylmuramic acid join…

The difference between autotrophs and heterotrophs are:

These are green plastids. They have green pigment the chlorophyll. Chloroplast takes part in photosyn­thesis. They are found in mesophyll cells of leaf and chlorenchyma cells in stem. Many algae…

The difference between anabolism and catabolism are:

Any chemical that can kill or repel a pest is a pesticide. In addition to various chemical pesticides various living organisms are utilized to destroy the undesirable organisms-they are known as biopesticides…

The difference between male peacock and female peacock are:

The significance of soil texture are relative resistance to root penetration, infiltration of water, the rate of water movement , water holding capacity …

The difference between the primary and secondary walls are primary wall has an extensible layer whereas secondary wall has nonextensible layer…

Xerophytes are the plants living in xeric habitats. Soils in these regions have very insignificant amount of water (such condition is called physical dryness). Sometimes water is present in soil but due…

The significance of osmosis in plants are Osmosis helps in absorption of water by plants, the turgidity of plant organs is dependent on water which is absor­bed due to osmosis…

Chemical fertilizers have ill effects e.g ., they are expensive and are manufactured from resources which are decreasing gradually e.g ., petroleum and coal. Also they are lost from the soil by surface run off and leaching. Biofertilizers are..

The Cell is defined as “A unit of biological activity delimited by a differentially permeable membrane and capable of self reproduction in a medium free of other living systems” (Loewy and Siekevitz…

The characteristics of enzymes are high molecular weight, amphoteric in  nature, Colloidal in nature, Specificity of enzymes, heat sensitivity, catalytic properties, reversibility of reaction…