Given below are three statements (A-B) each with one or more blanks. Select the option which correctly fills the blanks in the statements Statements:

A. Bioactive molecule, ________ is used as immunosuppressive agent in organ transplant patients, It is produced by the fungus ________.
B. Primary treatment of sewage involves physical removal of small and large particles through ________.


1. A - Antibiotic, Trichoderma polysporum; B - filtration and sedimentation

2. A - Cyclosporin A, Trichoderma polysporum; B - filtration and sedimentation

3. A - Cyclosporin A, Trichoderma polysporum; B - Centrifugation and sedimentation

4. A - Antibiotic, Trichoderma polysporum; B - Centrifugation and sedimentation

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules | Microbes in Sewage Treatment |
 93%
From NCERT
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Given below are three statements (A-B) each with one or more blanks. Select the option which correctly fill the blanks in the statements Statements:

A. Microbes consume the major part of the organic matter in the effluent and reduce _________ of sewage.

B. Certain bacteria which grow anaerobically on cellulosic material, produce large amount of methane along with CO2 and H2. The bacteria are commonly called as _________ and one such common bacterium is _________. Options:

(1) A - CO2 demand; B - methanogens, Methanobacterium

(2) A - Carbon; B - methanogens, Methanobacterium

(3) A - biochemical oxygen demand; B - methanogens, Methanobacterium

(4) A - biochemical oxygen demand; B - Methylokorus infemorum

Subtopic:  Microbes in Sewage Treatment | Microbes in Production of Biogas |
 93%
From NCERT
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The below diagram shows a typical biogas plant. Which of the following four option, products labelled as A are correctly identified:

1. A - Sludge; B - Methane, Oxygen; C - Dung, water

2. A - Sludge; B - Methane, Carbon dioxide; C - Dung, water

3. A - Sludge; B - Ethylin, Carbon dioxide; C - Dung, water

4. A - Sludge; B - Methane, Carbon dioxide; C - Sewage

Subtopic:  Microbes in Production of Biogas |
 81%
From NCERT
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Column-I

 

Column-II

I.

Streptomyces     

A.    

Nitrogen fixation

II.

Rhizobium

B.

Source of antibiotics

III.   

Nitrosomonas

C.

Vinegar synthesis

IV.

Acetobacter

D.

Nitrification

Which of the combinations is correct?

 

I

II

III

IV

(1)    

B    

A    

D    

C

(2)

C

D

A

B

(3)

A

B

C

D

(4)

D

B

A

C

Subtopic:  Industrial Products, Beverages & Antibiotics | Microbes in Household Products | Microbes as Biofertilizer |
 82%
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  Column-I   Column-II
I. Methanogens A. Microbial biocontrol agent
II. Organic wastes B. Penicillin
III.     Bacillus thuringiensis    
C.     Biochemical oxygen demand
IV. Penicillium notatum D. Methanobacterium

Which of the combinations is correct?

  I II III IV
(1)    B       A       D       C
(2) C D A B
(3) D C A B
(4) D B A C
Subtopic:  Industrial Products, Beverages & Antibiotics | Microbes in Sewage Treatment | Microbes in Production of Biogas | Microbes in Biocontrol Agent |
 94%
From NCERT
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Column-I

 

Column-II

I.

Saccharomyces    

A.    

Bacteria

II.

Trichoderma

B.

Cyanobacteria

III.    

Lactobacillus

C.

Fungi

IV.

Nostoc

D.

Yeast

Which of the combinations is correct?

 

I

II

III

IV

(1)   

D      

C      

A      

B

(2)

C

D

A

B

(3)

A

B

C

D

(4)

D

B

A

C

Subtopic:  Chemistry of Fermented Beverages | Microbes in Household Products | Microbes in Biocontrol Agent | Microbes as Biofertilizer |
 86%
From NCERT
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Column-I

 

Column-II

I.

Statins

A.

Yeast

II.

Ethanol

B.

Blood-cholesterol lowering agent

III.    

Dung

C.

Insect-resistant plant

IV.

Bt-cotton    

D.   

Biogas

Which of the combinations is correct?

 

I

II

III

IV

(1)   

B      

A      

D      

C

(2)

C

D

A

B

(3)

A

B

C

D

(4)

D

B

A

C

Subtopic:  Chemistry of Fermented Beverages | Chemicals, Enzymes & Other Bioactive Molecules | Microbes in Production of Biogas | Microbes in Biocontrol Agent |
 94%
From NCERT
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Following is the sewage treatment. In which of the following options, correct word for all the four numbers (1, 2, 3 and 4) are indicated:

(1) 1 - Large aeration tanks; 2 - Chemically agitation; 3 - High; 4 - Anaerobic

(2) 1 - Large aeration tanks; 2 - Mechanically agitation; 3 - Low; 4 - Anaerobic

(3) 1 - Large aeration tanks; 2 - Mechanically agitation; 3 - Low; 4 - Aerobic

(4) 1 - Large aeration tanks; 2 - Mechanically agitation; 3 - High; 4 - Anaerobic

Subtopic:  Microbes in Sewage Treatment |
 62%
From NCERT
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Following is the curd formation from milk. In which of the following options, correct word for all the two numbers (1 and 2) are indicated:

(1) 1 - Lactic acid; 2 - Increased vitamin B1

(2) 1 - Lactic acid; 2 - Increased vitamin B2

(3) 1 - Lactic acid; 2 - Increased vitamin B12

(4) 1 - Lactic acid; 2 - Increased vitamin C

Subtopic:  Microbes in Household Products |
 96%
From NCERT
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Which of the following statements is correct?

A. Single cell protein is rich in high quality proteins but poor in fat.

B. BOD is the amount of oxygen that would be consumed if all the inorganic matter in one litre of water were oxidized by bacteria.

C. Trichoderma sp are free living fungi that are effective biocontrol agents of several pathogens.

D. Baculoviruses are pathogens that attack insects and other arthropods.

E. Bacillus thuringiensis is first used biopesticide.

F. Lactase enzyme is used in alcoholic fermentation.

G. Mycorrhiza is a symbiotic association between fungi e.g. Glomus and vascular plant.

(1) B, C, F, G

(2) A, D, F

(3) A, C, D, E, G

(4) B, F

Subtopic:  Chemistry of Fermented Beverages | Chemicals, Enzymes & Other Bioactive Molecules | Microbes in Sewage Treatment | Microbes in Biocontrol Agent |
 77%
From NCERT
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