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Yogita Ingle 7 years, 10 months ago
Non metal: Hydrogen (H) , Helium(He), Carbon(C), Nitrogen(N), Oxygen(O), Fluorine(F), Neon(Ne), Phosphorus(P), Sulfur(S), Chlorine (Cl). Argon(Ar), Selenium(Se), Bromine(Br), Krypton(Kr), Iodine(I), Xenon(Xe)
Metal: Lithium(Li), Beryllium(Be), Sodium (Na), Magnesium(Mg), Aluminum(Al), Potassium(K) , Calcium(Ca), Scandium(Sc ), Titanium(Ti ) , Vanadium(V) , Chromium(Cr) , Manganese(Mn), Iron(Fe), Cobalt(Co), Nickel(Ni), Copper (Cu)
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Yogita Ingle 7 years, 10 months ago
Microorganisms are useful in the following ways:
Food and beverage industry: Bacteria help us in making certain foods. Lactobacillus is a bacterium that sours milk and is used to makes curd from milk. Many fungi like Mushrooms and morels are edible which are rich. Yeast is commonly employed in preparing food items like bread, cakes, idli, dosa, dhokla etc. Yeast is also used in breweries for making wines by the process of fermentation.
Making medicines and vaccines: Bacteria and fungi are used to make medicines called antibiotics. The first antibiotic, penicillin was discovered by Alexander Flemming using the fungus penicillium. Some common antibiotics are streptomycin and terramycin.
Microbes are used to make vaccines. Vaccines are weakened or dead germs introduced into the body. They offer protection against diseases like tuberculosis, polio etc. by producing anti- bodies. Bacteria and Yeast are used in making vitamin B complex tablets.The human hormonal called insulin can also be obtained from bacteria.
In Agriculture: Some bacteria like Rhizobium, blue green algae like Nostoc, live in the root nodules of plants such as gram, pea etc. These bacteria absorb the nitrogen of the atmosphere and convert it into nitrate which serves as natural fertilizers for plants, hence, enhancing soil fertility.
In cleaning the environment: Microbes help to keep our environment clean by decomposing dead matter. They decomposed substances are recycled as these get reused from the soil by plants. Some bacteria decompose sewage and other waste in water. This is nature’s method of keeping the environment free from pollution.
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Yogita Ingle 7 years, 10 months ago
Microorganisms like bacteria act as decomposers to clean up organic waste by decomposing them into usable substances.
Decomposition of Microorganisms: It is the process by which some organisms can convert dead and decaying matter into organic matter of the soil. These organisms which bring about decomposition are termed to be decomposers. Decomposers form an important part of the ecosystem.
Posted by Sai Rishik Kumar 7 years, 10 months ago
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Yogita Ingle 7 years, 10 months ago
The Golgi apparatus has been given more than just name, be it Golgi complex or Golgi body. But it is mostly addressed to the Golgi apparatus. We shall begin by familiarizing ourselves with where they are found. First and foremost, they exist universally in both plants and animals, unlike vacuoles and such.
Functions:
1) They are involved in synthesis of cell wall, plasma membrane and lysosomes.
2) It produces vacuoles which contain cellular secretions eg: enzymes, protein, cellulose etc.
3) They act as an area for storage, processing and packaging of various cellular secretions.
4) It is involved in repair and synthesis of cell membrane.
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Sia ? 4 years, 7 months ago
| Prokaryote | Eukaryote | |
| Nucleus | Absent | Present |
| Membrane-bound organelles | Absent | Present |
| Cell structure | Unicellular | Mostly multicellular; some unicellular |
| Cell size | Smaller (0.1-5 μm) | Larger (10-100 μm) |
| Complexity | Simpler | More complex |
| DNA Form | Circular | Linear |
| Examples | Bacteria, archaea | Animals, plants, fungi, protists |
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Satyam Mishra 7 years, 10 months ago
2Thank You