Class XII · Biology practice
Microbes in Human Welfare MCQs
Check your understanding, bookmark questions and revisit your mistakes.
455 questions in this collection · Page 32 of 46
Question 311 of 455
📘 CLASS XII
Microbes In Human Welfare
Bt spores are mixed with water and sprayed onto vulnerable plants like brassicas and _____.
Bt spores are sprayed onto vulnerable plants such as brassicas and fruit trees.
Question 312 of 455
📘 CLASS XII
Microbes In Human Welfare
Baculoviruses are desirable for an overall Integrated Pest Management (IPM) programme, especially when _____ are being conserved.
This is especially desirable when beneficial insects are being conserved to aid in an overall integrated pest management (IPM) programme.
Question 313 of 455
📘 CLASS XII
Microbes In Human Welfare
Historically, antibiotics have played a major role in controlling infectious diseases like diphtheria, whooping cough, and _____.
Antibiotics have greatly improved our capacity to treat deadly diseases such as plague, whooping cough, diphtheria and leprosy.
Question 314 of 455
📘 CLASS XII
Microbes In Human Welfare
Bacteria and fungi are used to impart particular texture, taste, and _____ to cheese.
Bacteria and fungi are used to impart particular texture, taste and flavor to cheese.
Question 315 of 455
📘 CLASS XII
Microbes In Human Welfare
In the context of microbe diversity, prions are noted as ____ infectious agents.
Prions are proteinaceous infectious agents.
Question 316 of 455
📘 CLASS XII
Microbes In Human Welfare
Microbes are present everywhere, including in highly ____ environments.
Microbes are present even at sites... such as in highly acidic environments.
Question 317 of 455
📘 CLASS XII
Microbes In Human Welfare
The metabolic pathway resulting in the production of CO2 in dough is _____.
The puffed-up appearance of dough is due to the production of CO2 gas during fermentation by bacteria.
Question 318 of 455
📘 CLASS XII
Microbes In Human Welfare
Microbes are used to ferment fish, soyabean and ____-shoots to make foods.
Microbes are also used to ferment fish, soyabean and bamboo-shoots to make foods.
Question 319 of 455
📘 CLASS XII
Microbes In Human Welfare
The oldest food item mentioned in the chapter that uses microbes is _____.
Cheese, is one of the oldest food items in which microbes were used.
Question 320 of 455
📘 CLASS XII
Microbes In Human Welfare
The yeast Saccharomyces cerevisiae used for bread-making is commonly called ____ yeast when used for beverage production.
The same yeast Saccharomyces cerevisiae... is commonly called brewer's yeast.
Page score: 0/40