Microbes in Human Welfare · Question 13

Select the correct group of biocontrol agents.

1. Oscillatoria, Rhizobium, Trichoderma
2. Nostoc, Azospirillum, Nucleopolyhedrovirus
3. Bacillus thuringiensis, Tobacco mosaic virus, Aphids
4. Trichoderma, Baculovirus, Bacillus thuringiensis

Match the following organisms with the products they produce : Select the correct option.

1. (a)-(iii), (b)-(iv), (c)-(v), (d)-(i)
2. (a)-(ii), (b)-(i), (c)-(iii), (d)-(v)
3. (a)-(ii), (b)-(iv), (c)-(v), (d)-(iii)
4. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)

Which of the following can be used as a biocontrol agent in the treatment of plant disease?

1. Anabaena
2. Lactobacillus
3. Trichoderma
4. Chlorella

Which of the following is a commercial blood cholesterol lowering agent?

1. Streptokinase
2. Lipases
3. Cyclosporin A
4. Statin

Conversion of milk to curd improves its nutritional value by increasing the amount of

1. vitamin D
2. vitamin A
3. vitamin B12
4. vitamin E

Select the mismatch :

1. Rhodospirillum - Mycorrhiza
2. Anabaena - Nitrogen fixer
3. Rhizobium - Alfalfa
4. Frankia - Alnus

Which of the following in sewage treatment removes suspended solids ?

1. Secondary treatment
2. Tertiary treatment
3. Primary treatment
4. Sludge treatment

Which of the following is correctly matched for the product produced by them ?

1. Acetobacter aceti : Antibiotics
2. Penicillium notatum : Acetic acid
3. Methanobacterium : Lactic acid
4. Saccharomyces cerevisiae : Ethanol

Which of the following is wrongly matched in the given table?

1. Microbe - Streptococcus, Product - Streptokinase, Application - Removal of clot from blood vessel
2. Microbe - Trichoderma polysporum, Product - Cyclosporin A, Application - Immunosuppressive drug
3. Microbe - Monascus purpureus, Product - Statins, Application - Lowering of blood cholesterol
4. Microbe - Clostridium butylicum, Product - Lipase, Application - Removal of oil stains

Match the following list of microbes and their importance -

1. (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
2. (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
3. (a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)
4. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)