Class XII · Biology practice
Microbes in Human Welfare MCQs
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455 questions in this collection · Page 24 of 46
Question 231 of 455
📘 CLASS XII
Microbes In Human Welfare
A small amount of curd added to the fresh milk to start curd production is known as _____ or starter.
A small amount of curd added to the fresh milk as inoculum or starter contain millions of LAB.
Question 232 of 455
📘 CLASS XII
Microbes In Human Welfare
The puffed-up appearance of dough used for idli and dosa is due to the production of _____ gas.
The puffed-up appearance of dough is due to the production of CO2 gas.
Question 233 of 455
📘 CLASS XII
Microbes In Human Welfare
The yeast used for fermenting bread dough, also known as baker’s yeast, is _____.
The dough for making bread is fermented using baker’s yeast (Saccharomyces cerevisiae).
Question 234 of 455
📘 CLASS XII
Microbes In Human Welfare
'Toddy', a traditional drink in Southern India, is made by fermenting sap from _____.
‘Toddy’, a traditional drink of some parts of southern India is made by fermenting sap from palms.
Question 235 of 455
📘 CLASS XII
Microbes In Human Welfare
The large holes characteristic of 'Swiss cheese' are caused by the large amount of CO2 produced by the bacterium named _____.
The large holes in ‘Swiss cheese’ are due to production of a large amount of CO2 by a bacterium named Propionibacterium sharmanii.
Question 236 of 455
📘 CLASS XII
Microbes In Human Welfare
The specific flavour of 'Roquefort cheese' is achieved by ripening it with a specific _____.
The ‘Roquefort cheese’ are ripened by growing a specific fungi on them.
Question 237 of 455
📘 CLASS XII
Microbes In Human Welfare
For production on an industrial scale, microbes are grown in very large vessels called _____.
Production on an industrial scale requires growing microbes in very large vessels called fermentors.
Question 238 of 455
📘 CLASS XII
Microbes In Human Welfare
The yeast *Saccharomyces cerevisiae* is commonly called _____ when used for producing ethanol from malted cereals and fruit juices.
The same yeast *Saccharomyces cerevisiae*... is commonly called brewer's yeast.
Question 239 of 455
📘 CLASS XII
Microbes In Human Welfare
Alcoholic drinks like whisky, brandy, and rum are produced by _____ of the fermented broth.
Whisky, brandy and rum are produced by distillation of the fermented broth.
Question 240 of 455
📘 CLASS XII
Microbes In Human Welfare
Wine and beer are produced _____ distillation.
Wine and beer are produced without distillation.
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