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प्रश्न
Which are the different types of micro-organisms?
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उत्तर
Microorganisms can be divided into 5 major groups, like:
Bacteria are the most primitive and diverse unicellular organisms found in the living world. They are prokaryotic in nature as their genetic material, i.e., DNA, is not enclosed within a nuclear membrane. Because of their unique biochemical pathways and properties, they are of high economic importance to human beings.
Fungi: Fungi is a group of eukaryotic, unicellular, as well as multicellular, non-photosynthetic organisms that includes mushrooms, moulds and yeasts. These organisms have a rigid cell wall made up of chitin and are found in diverse shapes and sizes.
Algae: Algae are a diverse group of aquatic organisms that have the ability to conduct photosynthesis.
Protozoa: Protozoa are a group of unicellular micoorganisms that are non photosynthetic in nature. Many protozoa cause disease in animals and humans.
Viruses: Viruses are ultramicroscopic and non-cellular organisms. They have a simple structure, having genetic material coated by a protein coat. They are obligate parasites and highly pathogenic.
संबंधित प्रश्न
Carrier of malaria-causing protozoan is ___________.
Match the organisms in Column A with their action in Column B.
| A | B | ||
| (i) | Bacteria | (a) | Fixing Nitrogen |
| (ii) | Rhizobium | (b) | Setting of curd |
| (iii) | Lactobacillus | (c) | Baking of bread |
| (iv) | Yeast | (d) | Causing Malaria |
| (v) | A protozoan | (e) | Causing Cholera |
| (vi) | A Virus | (f) | Causing AIDS |
| (g) | Producing antibodies |
Rewrite the following statement using the correct option and explain the completed statement.
Process of ______ of milk proteins occurs due to lactic acid.
Give scientific reasons.
Use of mutant strains has been increased in industrial microbiology.
Use the Whittaker method to classify bacteria, protozoa, fungi, algae, prokaryotic and eukaryotic microbes.
Arrange the following in ascending order of size Bacteria, Fungi, Viruses, Algae.
What are micro-organisms?
What are the main features of a microorganism?
Yeasts are a rich source of ______.
Vaccines stimulate the body to produce ______ against the ______ in the microbes.
