bacteria and its uses

These are bacteria which are able to synthesize their own organic food from inorganic substances. They use carbon dioxide for obtaining carbon and utilise hydrogen sulphide (H 2 S) or ammonia (NH 3 ) or hydrogen (H 2 ) as the source of hydrogen to reduce carbon. These bacte..

One of the unsolved mysteries in biology is that of viruses. Due to the absence of a cellular organization viruses cannot be placed with either prokaryotes or eukaryotes. They are considered as intermediate between living and non-living systems. Viruses are active and show reproduction only inside ..

A simple microscope is used as a magnifying glass. It cannot be used to observe very tiny objects like bacteria and cells because of its low magnificati..

In agriculture Microfined sulphur, and derivatives of sulphur are sprayed on plants and trees to destroy the fungus, insects, bacteria etc. that attack the..

Uses of Chlorine - Chlorine is used for bleaching cotton, linen, wood pulp, etc. It is used in the sterilization of drinking water, and the water in swimming pools. The strong oxidizing action of chlorine destroys organic matter like bacteria, fungus and othe..

In agriculture - Microfined sulphur, and derivatives of sulphur are sprayed on plants and trees to destroy the fungus, insects, bacteria etc. that attack the..

Bacteria may be used as living laboratories for synthesising vitamins, hormones and antibiotics by introducing into them the genes which code for these substances along with the plasmid..

Earlier E. coli was used as a host for the recombinant DNA. Now Bacillus subtilis and yeast are also being used. The bacteria to be used as hosts should be without plasmids. Their wall is made permeable by treatment with calcium chloride or lysozyme. The reco..

Chemoautotrophs are (organisms) bacteria using CO 2 as a carbon source and energy derived from the oxidation of inorganic materials such as iron, sulphur, ammonia and nitrite. Chemosynthesis is thus a process of carbohydrate synthesis, in which organisms use chemical r..

The bacteriophages (or phages), are viruses that infect and kill bacteria. Their circular DNA is also suitable for use as a vehicle DN..