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Class 8
Chapter 2 Class 8 - Microorganisms : Friend and Foe

Chemical breakdown of substance by a microorganism is called Fermentation


Yeast helps in converting sugar into alcohol (by process of fermentation)

Yeast is grown on natural sugars grown in wheat,barley etc

Yeast converts sugar into alcohol by process called fermentation



NCERT Question 2 (f) - The process of conversion of sugar into alcohol is called

(i) nitrogen fixation (ii) moulding (iii) fermentation (iv) infection

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo