In the given diagram the gas X can be :

1. Hydrogen

2. Carbon monoxide

3. Ammonia

4. Oxygen

Subtopic:  Microbes in Production of Biogas |
 78%
From NCERT
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The virus shown here is a causative agent of :

1. Intestinal infections

2. Respiratory infections

3. CNS infections

4. Genito-urinary infections

Subtopic:  Industrial Products, Beverages & Antibiotics |
 81%
From NCERT
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Consider the following statements:

I:  Statins, used as blood cholesterol-lowering agents, are derived from Monascus purpureus
II:  Cyclosporin A, derived from Trichoderma, is used as an immunosuppressant
III:  Baculoviruses, in the genus Nucleopolyhederovirus, are species-specific, broad-spectrum insecticides

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 76%
From NCERT
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Modern detergents contain enzyme preparations of

(1) acidophiles

(2) alkaliphiles

(3) thermoacidophiles

(4) thermophiles

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 57%
NEET - 2008
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High value of BOD (Biochemical Oxygen Demand) indicates that

1. Water is pure

2. water is highly polluted

3. water is less polluted

4. Consumption of organic matter in the water is higher by the microbes

Subtopic:  Microbes in Sewage Treatment |
 83%
From NCERT
NEET - 2015
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Which of the following in sewage treatment removes suspended solids?

(1) Tertiary treatment

(2) Secondary treatment

(3) Primary treatment

(4) Sludge treatment

Subtopic:  Microbes in Sewage Treatment |
 82%
From NCERT
NEET - 2017
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A. Saccharomyces  cerevisiae i. Production of immunosuppressive agents
B. Monascus purpureus ii. Ripening of Swiss Cheese
C. Trichoderma polysporum iii. Commercial production of ethanol
D. Propionibacterium sharrmanii    iv. Production of blood-cholesterol lowering agents      

Codes

A     B     C     D
1.   iii iv i ii
2. iv iii ii i
3. iv ii i iii
4. iii i iv ii
Subtopic:  Chemistry of Fermented Beverages | Microbes in Household Products | Chemicals, Enzymes & Other Bioactive Molecules |
 86%
From NCERT
NEET - 2015
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What gases are produced in anaerobic sludge digesters?

1. Methane and CO2 only

2. Methane, Hydrogen sulphide and CO2

3. Methane, hydrogen sulphide and O2

4. Hydrogen sulphide and CO2

Subtopic:  Microbes in Sewage Treatment |
 91%
From NCERT
NEET - 2014
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A good producer of citric acid is

1. Aspergillus

2. Pseudomonas

3. Clostridium

4. Saccharomyces

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 96%
From NCERT
NEET - 2013
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Monascus purpureus is a yeast used commercially in the production of

(1) ethanol

(2) streptokinase for removing clots from the blood vessels.

(3) citric acid

(4) blood cholesterol lowering statins.

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 87%
From NCERT
NEET - 2012
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