Monascus purpureus is a yeast used commercially in the production of 

1. Citric acid
2. Blood cholesterol lowering statins
3. Ethanol
4. Streptokinase for removing clots from the blood vessels.

Subtopic:  Chemistry of Fermented Beverages | Microbes in Household Products |
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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 |
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Besides paddy fields, cyanobacteria are also found inside vegetative part of
1. Pinus
2. Cycas
3. Equisetum
4. Psilotum

Subtopic:  Examples of Gymnosperms |
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A good producer of citric acid is 
1. Aspergillus
2. Pseudomonas
3. Clostridium
4. Saccharomyces 

Subtopic:  Microbes in Household Products |
 91%
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During sewage treatment, biogases are produced which include :
1. Methane, hydrogen sulphide, carbon dioxide
2. Methane, oxygen, hydrogen sulphide
3. Hydrogen sulphide, methane, sulphur dioxide
4. Hydrogen sulphide, nitrogen, methane 

Subtopic:  Microbes in Production of Biogas |
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What gases are produced in anaerobic sludge digesters?  

1. Methane and CO2.
2. Methane, Hydrogen sulphide and CO2.
3. Methane, Hydrogen sulphide and CO.
4. Hydrogen sulphide and CO2

Subtopic:  Microbes in Sewage Treatment |
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Match the following list of microbes and their importance.

(a)

Saccharomyces cerevisiae

(i)

Production of immunosuppressive drug

(b)

Moancus purpureus

(ii)

Ripening of Swiss cheese

(c)

Trichoderma polysporum

(iii)

Commercial production of ethanol

(d)

Propionibacterium shermanii

(iv)

Production of blood cholesterol lowering agents



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

Subtopic:  Industrial Products, Beverages & Antibiotics |
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The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include the:

1.Halophiles2.Thermoacidophiles
3.Methanogens4.Eubacteria

Subtopic:  Microbes in Production of Biogas |
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NEET - 2016

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

Microbe

Product

 Application

1.

Trichoderma polysporum

Cyclosporin A

Immunosuppressive drug

2.

Monascus purpureus

Statins

Lowering of blood cholesterol

3.

Streptococcus

Streptokinase

Removal of clot from blood vessel

4.

Clostridium butylicum

Lipase

 Removal of oil stains

Subtopic:  Industrial Products, Beverages & Antibiotics |
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Match Column I with Column II and select the correct option using the codes given below:

Column I

Column II

(a)

Citric acid

(i)

Trichoderma

(b)

Cyclosporin A

(ii)

Clostridium

(c)

Statins

(iii)

Aspergillus

(d)

Butyric acid

(iv)

Monascus

Codes:

 

(a)

(b)

(c)

(d)

1.

(iii)

(i)

(iv)

(ii)

2.

(i)

(iv)

(ii)

(iii)

3.

(iii)

(iv)

(i)

(ii)

4.

(iii)

(i)

(ii)

(iv)

Subtopic:  Microbes in Household Products | Chemicals, Enzymes & Other Bioactive Molecules |
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