Name two organisms whose symbiotic association leads to nitrogen fixation in root nodules
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1
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748
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September 1, 2016
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Why do farmers prefer biofertilizers to chemical fertilizers these days ? Explain
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1
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4081
|
September 1, 2016
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Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area
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0
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3391
|
September 1, 2016
|
Why is Rhizobium categorized as a 'symbiotic bacterium'? How does it act as a biofertiliser?
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0
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2236
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September 1, 2016
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Explain the significant role of the genes Nucleopolyhedrovirus in an ecological sensitive area
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0
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511
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September 1, 2016
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Name any two free living nitrogen fixing bacteria
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0
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1223
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September 1, 2016
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Mention two advantages of adding blue-green algae to paddy fields
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0
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1742
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September 1, 2016
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Mention the role of cyanobacteria as a biofertlilizer
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0
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415
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September 1, 2016
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Name the types of association that the genus Glomus exhibits with higher plants
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0
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1123
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September 1, 2016
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Explain the process of sewage water treatment before it can be discharge into natural water bodies. Why is this treatment essential?
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0
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4754
|
September 1, 2016
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Mention the importance of microbes Streptococcus, Trichoderma and Monascus in medical sciences
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0
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1866
|
September 1, 2016
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Microbes play a dual role when used for sewage treatment as they not only help to retrieve usable water but also generate fuel. Write how this happens?
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0
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3755
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September 1, 2016
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Name the fungus used in organ transplant treatment. Write the product of this organism and explain its specific use
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0
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3996
|
September 1, 2016
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Mention the product and its use produced by each of the microbes listed below :
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1
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4294
|
September 1, 2016
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Identify a,b,c,d,e and f in the table given below
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1
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1889
|
September 1, 2016
|
The diagram is that of a typical biogas plant
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1
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3645
|
September 1, 2016
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Name the genus to which baculo viruses belong. Describe their role in the integrated pest management programmes
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0
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2434
|
September 1, 2016
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How is activated sludge formed during sewage treatment?
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1
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3022
|
September 1, 2016
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Name two different categories of microbes naturally occuring in sewage water.Explain their role in cleaning sewage water into usable water
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0
|
393
|
September 1, 2016
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Name the pest that destroys the cotton balls.Explain the role of Bacillus thuringiensis in protecting the cotton crop against the pest to increase the yield
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0
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3041
|
September 1, 2016
|
Describe how biogas is generated from activated sludge. List the components of biogas
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0
|
3929
|
September 1, 2016
|
Why are the fruit juices bought from market clearer compared with those made at home?
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1
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5166
|
September 1, 2016
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Identify a,b,c,d,e and f in the table give below
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1
|
1286
|
September 1, 2016
|
What are Methanogenes ? Name the animals they are present in and the role they play there
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0
|
429
|
September 1, 2016
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Name the two different categories of microbes naturally occuring in sewage water.Explain their role in cleaning sewage water into usable water
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0
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501
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September 1, 2016
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How does addition of a small amount of curd to fresh milk help in formation of curd?
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0
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1563
|
September 1, 2016
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During the production of curd, a small amount of curd is added as a starter to the fresh milk at a suitable temperature.Explain the changes the milk undergoes when it sets into curd
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0
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1744
|
September 1, 2016
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Why are some molecules called bioactive molecules?Give two examples of such molecules
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0
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3959
|
September 1, 2016
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Name the enzyme produced by Streptococcus bacterium.Explain its importance in medical sciences
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0
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2674
|
September 1, 2016
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State the use of:
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1
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1723
|
September 1, 2016
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