➣ Explain the uses and the harmful
⠀⠀effects of micro-organisms.
➣ Diseases spread on a large scale ⠀⠀during periods of heavy rain fall ⠀⠀and floods.
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Answers
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Explain the uses and the harmful effects of micro-organisms.
☆USEFUL EFFECTS
- Each human body hosts 10 microorganisms for every human cell, and these microbes contribute to digestion, produce vitamin K, promote development of the immune system, and detoxify harmful chemicals.
- And, of course, microbes are essential to making many foods we enjoy, such as bread, cheese, and wine.
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☆HARMFUL EFFECTS
- Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera.
- Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.
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USES OF MICROORGANISMS :—
➣ Production of Antibiotics:
Antibiotics are metabolic products of several harmless microorganisms. They are used to kill various pathogenic microorganisms, so helpful in treating many diseases. The important antibiotics currently used in medicines are Penicillin, Streptomycin Bacitracin, Chloromycin, Chlorotetracycline, Tetracycline, Neomycin terramycin, Auromycin, Puromycin, Haymycin and Erythromycin.
➣ Production of Dairy Products:
Microorganisms are useful in the production of cheese, butter milk and other dairy products.
➣ Production of Alcoholic Beverages:
Alcholic beverages are produced by the fermentation of sugars by yeasts.
➣ Production of Bread making:
Selected strains of S. cerevisae are mixed in the dough. Fermentation results in the production of carbon dioxide which causes the dough to rise (leavening) and brings about a desired change in the texture and flavour. The quality of the bread depends upon the strain of yeast, selection of raw materials and incubation conditions.
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HARMFUL EFFECTS OF MICROBES —
microorganisms are useful as well as harmful also, in fact, some microbes are very helpful but most of them are harmful to living beings.
➣Some microorganisms are pathogens which cause diseases to human animals and plants.
➣Bacteria and fungi are well known to cause food spoilage and make them unfit for eating.
➣Bacteria cause some diseases like cholera, typhoid, and diarrhea through water and food.
➣Virus scan causes smallpox, cold, hepatitis polio and soon.
➣Some microorganisms show antibiotic resistance to certain diseases.
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ᴅɪsᴇᴀsᴇs sᴘʀᴇᴀᴅ ᴏɴ ᴀ ʟᴀʀɢᴇ sᴄᴀʟᴇ ᴅᴜʀɪɴɢ ᴘᴇʀɪᴏᴅs ᴏғ ʜᴇᴀᴠʏ ʀᴀɪɴ ғᴀʟʟ ᴀɴᴅ ғʟᴏᴏᴅs :—
ᴛʜᴇ sᴘʀᴇᴀᴅ ᴏғ ᴅɪsᴇᴀsᴇ ɪs ᴍᴏsᴛ ʟɪᴋᴇʟʏ ᴅᴜʀɪɴɢ ʜᴇᴀᴠʏ ʀᴀɪɴғᴀʟʟ ᴀɴᴅ ғʟᴏᴏᴅs. ᴛʜᴇ ᴡᴀᴛᴇʀ ᴀɴᴅ ғᴏᴏᴅ ɢᴇᴛs ᴄᴏɴᴛᴀᴍɪɴᴀᴛᴇᴅ. ᴛʜᴇ ᴡᴀᴛᴇʀ ʟᴏɢɢɪɴɢ ᴄᴀᴜsᴇ ɢʀᴏᴡᴛʜ ᴏғ ᴍɪᴄʀᴏ ᴏʀɢᴀɴɪsᴍs ᴀɴᴅ ʜᴏᴜsᴇ ғɪʟᴇs. ᴛʜᴇʏ sᴘʀᴇᴀᴅ ᴘᴀᴛʜᴏɢᴇɴs ʀᴀᴘɪᴅʟʏ. ᴛʜᴇ ʜᴜᴍɪᴅ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ɪɴᴅᴜᴄᴇs ғᴏᴏᴅ sᴘᴏɪʟᴀɢᴇ. ᴇᴠᴇɴ ɪғ ғʟᴏᴏᴅ ᴡᴀᴛᴇʀ ʀᴇᴄᴇᴅᴇs, ᴛʜᴇ ᴘᴏᴏᴅʟᴇ ғᴏʀᴍᴇᴅ ʜᴇʟᴘs ɪɴ ᴛʜᴇ ʙʀᴇᴇᴅɪɴɢ ᴏғ ᴍᴏsǫᴜɪᴛᴏ. ᴀʟʟ sᴜᴄʜ ʀᴇᴀsᴏɴs ᴀʀᴇ ʀᴇsᴘᴏɴsɪʙʟᴇ ғᴏʀ ᴇᴘɪᴅᴇᴍɪᴄ sᴘʀᴇᴀᴅ ᴏғ ᴅɪsᴇᴀsᴇ.