STANDARD Botany Microbes In Human Welfare Class 12 Questions

The dough kept overnight in warm weather becomes soft and spongy because of

One of the oldest food items in which microbes were used is _______

_______ are used in detergent formulations and are helpful in removing oily stains from the laundry

Match the following organisms with the products they produce A. Lactobacillus B. Saccharomyces C. Aspergillus niger D. Acetobacter aceti 1. Cheese 2. Curd 3. Citric Acid 4. Bread 5. Acetic Acid Select the correct option from the following

_______ is used as an immunosuppressive agent in organ transplants, is produced by the fungus _______

Sir Alexander Fleming extracted penicillin from

Match the microbes in column I with their commercial/industrial products in column II and choose the correct answer

The organism used for alcohol fermentation is

Members of the fungal genus ______ form symbiotic associations with plants called ______

Which one of the following is used in the baking of the bread

Which among these are produced by the distillation of fermented broth (i) Whisky (ii) Beer (iii) Wine (iv) Brandy (v) Rum

Yeast is used in the production of

Ernst chain and Howard Florey's contribution was

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct

Which of the following is wrongly matched in the given table

In the sewage treatment, bacterial flocs are allowed to sediment in a settling tank. This sediment is called as

The primary treatment of sewage involves

Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes

One of the following bacterial groups are exploited in biogas production

In gobar gas, the maximum amount is that of

Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage

Methanogenic bacteria are not found in

Select the correct statement from the following

Some blue green algae can be used as biofertilizer as they are

The common nitrogen-fixer in paddy fields is

Azolla enriches rice fields with nitrogen due to its association with

Biofertilizers include

The technology of biogas production was developed in India mainly due to the efforts of ______ & ______

Which one of the following is an example of carrying out biological control of pests/diseases using microbes

Match the items in Column 'A' and Column 'B' and choose correct answer