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Uses of Bacteria:-
Bacteria is useful in the following ways:-
(i) Bacteria are natural scavangers. They obtain their nutrition by decomposing dead bodies, dead plants and animal excreta.
(ii) These are used in the fermentation process for vinegar manufacturing, yogurt making, etc.
(iii) Some bacteria help in retting of jute and coconut plant fibres. The separated fibres are used in making ropes or gunny bags.
(iv) The genus Streptomyces has many species used to produce different antibiotics.
Some important antibiotics using various bacteria are neomycin, … omycetin, streptomycin, gramicidin, bacitracin.
(v) Bacteria play important role in different steps of nitrogen cycle. Some important bacteria in nitrogen cycle, e.g, Clostridium, Azotobacter (soil bacteria), Rhizobium leguminosarum, Bacillus radicicola (in nodules), Nitrosomonas, Nitrosobacter, Pseudomonas etc.
Harmful Effects of Bacteria:-
⚜Bacteria is harmful in the following ways:-
(i) Some saprophytic bacteria like Lactobacillus spoil milk and milk products.
(ii) Food poisoning occurs due to the production of toxins by some bacteria like Clostridium botulinum.
⚜They cause botulism, which can kill humans by respiratory paralysis.
(iii) Bacteria are responsible for various plant diseases like citrus canker in lemon leaves and fruits, soft rot in carrot plants, blight disease in rice plants, crown gall disease in apple trees and rose plants.
(iv) In humans, bacteria cause diseases like cholera (Vibrio cholerae), gastric ulcer (Heliobacter pylori), tuberculosis (Mycobacterium tuberculosis), sexually transmitted diseases like gonorrhoea(Neisseriagonorfhoeae), syphilis (Treponema pallidum), etc.
(v) In animals like horse, cattle and sheep, anthrax disease is caused by Anthracis.
More from biological classification will be uploaded keep up to date❤️
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