Which of the following proved effective for biological control of nematodal disease in plants? 
1. Paecilomyces lilacinus
2. Pisolithus tinctorius
3. Pseudomonas cepacia
4. Gliocladium virens 

Subtopic:  Industrial Products, Beverages & Antibiotics |
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Consider the given two statements:
I. Coliform bacteria are a commonly used indicator of sanitary quality of foods and water.
II. Coliforms cause a number of serious illness.

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |

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For retting of jute the fermenting microbe used is  
1. Mesophilic bacteria
2. Helicobacter pylori
3. Butyric acid bacteria
4. Streptococcus lactis 

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
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Beauveria, Metarhizium, and Paecilomyces are:
1. Mycorrhizal fungi
2. Biofertilizers
3. Entomopathogenic fungi
4. Edible fungi

Subtopic:  Microbes in Biocontrol Agent |

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Nystatin, amphotericin B, and natamycin are antibiotics produced by different species of Streptomyces and are:
1. Anti fungal drugs
2. Anti bacterial drugs
3. Anti protozoan drugs
4. Anti cancer drugs

Subtopic:  Industrial Products, Beverages & Antibiotics |

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Identify the incorrectly matched pair:

1.

Chloramphenicol

Streptomyces venezuelae

2.

Streptomycin

Streptomyces griseus

3.

Tetracycline

Streptomyces fradiae

4.

Puromycin

Streptomyces alboniger

Subtopic:  Industrial Products, Beverages & Antibiotics |

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Modern detergents contain enzyme preparations of
1. Thermoacidophiles 
2. Thermophiles
3. Acidophiles
4. Alkaliphiles 

Subtopic:  Microbes in Household Products |
 56%
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The domestic sewage in large cities  
1. When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen.
2. Has very high amounts of suspended solids and dissolved salts.
3. Has a high BOD as it contains both aerobic and anaerobic bacteria.
4. Is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs). 

Subtopic:  Microbes in Sewage Treatment |
 59%
From NCERT

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A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of   

1. Bacillus
2. Pseudomonas
3. Trichoderma
4. Xanthomonas

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 59%
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Select the correct statement from the following: 
1. Biogas commonly called gobar gas is pure methane
2. Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
3. Biogas is produced by the activity of aerobic bacteria on animal waste
4. Methanobacterium is an aerobic bacterium found in rumen of cattle
 

Subtopic:  Microbes in Sewage Treatment |
 60%
From NCERT

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