Friendly microorganisms class 8

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• Study Material • Magazine Download • PYQ download • UPSC Notes • 1 minute read • Daily MCQ • Difference b/w • Full Forms • Free Courses • Free content for download • Video Lectures • UA Batches • Prelims • Environment • Agriculture • Geography • History-Freedom Struggle • Art & Culture • Polity • International relation • Sci & Tech • Economy • Mains • GS 1 • GS 2 • GS 3 • GS 4 • Exam Updates • UPSC Syllabus • Exam Dates • Results • Eligibility Criteria • Mains Syllabus • Prelims Syllabus • Notifications • Test & Practice • Daily MCQ • Prelims PYQs • Mains Questions • Rankers Guide • Topper Notes • Topper Interviews • Exam Tips • Paper Analysis Living organisms around us which can not be seen commonly are referred to as microorganisms or microbes. Microorganisms are categorised into 4 essential groups: micro organism, fungi, protozoa, and a few algae. Viruses also are microscopic however are one of a kind from different microorganisms and reproduce simplest withinside the host organism: bacterium, plant or animal cell. Characteristics of Microorganisms: • Microorganisms can be unicellular (micro organisms, a few algae, and protozoa), or multicellular (many algae and fungi). • Microorganisms stay in all varieties of environments, starting from ice bloodless weather to warm springs, and deserts to marshy lands. • Microorganisms are observed in air, water and withinside the bodies of plant life and animals. • Some microorganisms develop on different organisms at the same tim...

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CBSE Class 8 Science Notes Chapter 2 Microorganisms: Friend and Foe Pdf free download is part of CBSE Class 8 Science Notes Chapter 2 Microorganisms: Friend and Foe Microorganisms are too small and are not visible with the naked eye. They can live in all kinds of environment, ranging from ice cold climate to hot springs, deserts and marshy lands. Microorganisms are found in air, water and in the bodies of plants and animals. They may be unicellular or multicellular. Microorganisms include bacteria, fungi, protozoa and some algae. Viruses though different from the above-mentioned living organisms are referred to as microbes. Viruses are quite different from other microorganisms. They reproduce only inside the cells of the host organism: bacterium, plant or animal. Friendly Microorganisms The bacterium, Lactobacillus converts milk into curd. Bacteria are also involved in the making of cheese, pickles and many other food items. Acetobacter aceti bacteria is used for the production of acetic acid from alcohol. Yeast is used for commercial production of alcohol and wine by growing them on natural sugars present in grains like barley, wheat, rice and crushed fruit juices etc. Antibiotics are manufactured by growing specific microorganisms and are used to cure a variety of diseases. Some microorganisms reside in the root nodules of leguminous plants. They can fix atmospheric nitrogen from the air into the soil and increase soil fertility. Specialized bacteria convert nitrates and...