essay about advantages and disadvantages of kingdom monera
Answers
Advantages
Following are example of monera: Methanogens (Archaea) ,Escherichia coli (Eubacteria) .
Monera is a single cell organism, although there exists a few that have multicellular stages.
Some use photosynthesis and others absord nutrients from their surroundings
Monerans are prokaryotic unicellular organisms, whose cells have no nucleus or any other membrane-bound organelles.
Disadvantages
Some of the harmful activities caused by bacteria are −
Spoilage of Food − Saprotrophic bacteria cause rotting of vegetables, fruits, meat, bread, souring of milk etc.
Food Poisoning − Botulism is caused by Clostridium botulinum. Causes diarrhoea and vomiting.
Deterioration of Domestic Articles − Leather, wood, fibres etc.
Destruction of Penicillin − Bacillus brevis destroys Penicillin.
Denitrification of Soils − Converts nitrates of soil into gaseous nitrogen.
Desulphurification of Soils − Changes soil sulphates into hydrogen sulphide.
Some of the harmful activities caused by bacteria are −
Spoilage of Food − Saprotrophic bacteria cause rotting of vegetables, fruits, meat, bread, souring of milk etc.
Food Poisoning − Botulism is caused by Clostridium botulinum. Causes diarrhoea and vomiting.
Deterioration of Domestic Articles − Leather, wood, fibres etc.
Destruction of Penicillin − Bacillus brevis destroys Penicillin.
Denitrification of Soils − Converts nitrates of soil into gaseous nitrogen.
Desulphurification of Soils − Changes soil sulphates into hydrogen sulphide.
Diseases − Over 90% of the human and animal diseases and over 40% of plant diseases are caused by bacteria.
Diseases − Over 90% of the human and animal diseases and over 40% of plant diseases are caused by bacteria.
Answer:
Disadvantages of Five Kingdom Classification
The shortcomings of five kingdom classification are:
Unicellular algae are kept in kingdom Protista, whereas algae like multicelluar organisms are ketp in kingdom Plantae. But similar organisms must be put together.
There is diversity in kingdom Protista. Dissimilar organisms must not be kept in same group.
All organisms other than moneran shows that they are polyphyletic in origin. It is a great shortcoming of five kingdom classification.
There is no place for viruses in five kingdom classification.
Similar organisms are kept far from each other. For example, unicellular and multi cellular algae