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Cow dung and water is mixed and the slurry is fed into the biogas plant for digestion by microbes. The person performing the process shares that there is no need to provide inoculum for it. Why? What is the role of microbes at the source? Under which condition will they be most active and effective?

asked Apr 17, 2019 by priyanka.clay6

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State the medicinal value and the bioactive molecule produced by Streptococcus, Monascus and Trichoderma.

asked Apr 17, 2019 by priyanka.clay6

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a parallel plate capacitor with air between the plates has capacitance C .

asked Apr 17, 2019 by swethasaravanan04273118

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How are flocs produced in the secondary treatment of the sewage? Explain their role.

asked Apr 17, 2019 by priyanka.clay6

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Vapour pressure of water at 293k is 17.51mm. Lowering of vapour pressure of

asked Apr 17, 2019 by sy13419

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The molecular formula of a saturated compound is C2 h4 br2 this formula per

asked Apr 17, 2019 by prathameshsatikosare948

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a) Baculoviruses are excellent candidates for integrated pest management in an ecologically sensitive area. Explain giving two reasons. (b) What is organic farming? Why is it suggested to switch over to organic farming ?

asked Apr 17, 2019 by priyanka.clay6

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An organic farmer relies on natural predation for controlling plant pests and diseases. Justify giving reasons why this is considered to be a holistic approach.

asked Apr 17, 2019 by priyanka.clay6

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1 g of nitrogen atom represents

asked Apr 17, 2019 by vsmuthe1970

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Identify a, b, c, d, e and f in the table given below :

asked Apr 17, 2019 by priyanka.clay6

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a) How is activated sludge formed during sewage treatment ? (b) This sludge can be used as an inoculum or as a source of biogas. Explain.

asked Apr 17, 2019 by priyanka.clay6

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Explain the different step involved in sewage treatment before it can be released into natural water bodies.

asked Apr 17, 2019 by priyanka.clay6

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Name the genus to which baculoviruses belong. Describe their role in integrated pest management programmes.

asked Apr 17, 2019 by priyanka.clay6

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(a) Why do farmers prefer biofertilisers to chemical fertilisers these days? Explain. (b) How do Anabaena and mycorrhiza act as biofertilisers?

asked Apr 17, 2019 by priyanka.clay6

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Name the two different categories of microbes naturally occurring in sewage water. Explain their role in cleaning sewage water into usable water.

asked Apr 17, 2019 by priyanka.clay6

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Describe how biogas is generated from activated sludge. List the components of biogas.

asked Apr 17, 2019 by priyanka.clay6

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What does BOD of a water body stand for? How is it related to water pollution ?

asked Apr 17, 2019 by priyanka.clay6

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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 Explain.

asked Apr 17, 2019 by priyanka.clay6

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Lactic Acid Bacteria (LAB) is commonly used in the conversion of milk into curd. Mention any two other functions of LAB that are useful to humans.

asked Apr 17, 2019 by priyanka.clay6

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Name two alcoholic drinks produced in each of the following ways. (i) by distillation and (ii) without distillation.

asked Apr 17, 2019 by priyanka.clay6

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Bacteria that convert effluent into activated sludge play one more beneficial side. Mention the role.

asked Apr 17, 2019 by priyanka.clay6

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It was observed that certain plant roots are infected by fungus. in spite of this infection the plant showed increased growth and development. Give reason.

asked Apr 17, 2019 by priyanka.clay6

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A farmer was suggested to apply certain microbial culture in his field to increase the yield. Suggest the types of microbes he could use in his paddy field and how do they help in increasing the yield.

asked Apr 17, 2019 by priyanka.clay6

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The smallest 5 digit number using two different digit is

asked Apr 17, 2019 by uma12782

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(a) Patients who have undergone myocardial infarction are given clot buster. Mention the clot buster administered and its microbial source. (b) A person recuperating from illness is advised to have curd regularly. Why?

asked Apr 17, 2019 by priyanka.clay6

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Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area.

asked Apr 17, 2019 by priyanka.clay6

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The focal length of the plane convex lens is 2R where R is the radius of cu

asked Apr 17, 2019 by rm.saimohit1

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74.5g of a metallic chloride contains 35.5g of chlorine the equivalent mass

asked Apr 17, 2019 by smitakadam406

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Explain the process of secondary treatment given to the primary effluent up to the point it shows significant change in the level of biological oxygen demand (BOD) in it.

asked Apr 17, 2019 by priyanka.clay6

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During the secondary treatment of primary effluents, how does a significant decrease in BOD occur?

asked Apr 17, 2019 by priyanka.clay6

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Name the enzyme produced by Streptococcus bacterium. Explain its importance in medical sciences.

asked Apr 17, 2019 by priyanka.clay6

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Why are some molecules called bioactive molecules? Give two examples of such molecules.

asked Apr 17, 2019 by priyanka.clay6

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Name the source of statin and state its action on the human body.

asked Apr 17, 2019 by priyanka.clay6

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Name the source of streptokinase. How does this bioactive molecule function in our body?

asked Apr 17, 2019 by priyanka.clay6

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Why is Rhizobium categorised as a 'symbiotic bacterium'. How does it act as a biofertiliser?

asked Apr 17, 2019 by priyanka.clay6

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List four advantages that a symbiotic mycorrhizal association provides to the host plant.

asked Apr 17, 2019 by priyanka.clay6

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How does 'starter' added to milk help it set into curd?

asked Apr 17, 2019 by priyanka.clay6

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Name the bacterium responsible for the large holes in 'Swiss cheese'. What are these holes due to?

asked Apr 17, 2019 by priyanka.clay6

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Why does 'Swiss-cheese' contain large holes?

asked Apr 17, 2019 by priyanka.clay6

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Microbes release gases during metabolism. How will it help in the production of energy?

asked Apr 17, 2019 by priyanka.clay6

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Why are some microbes useful in detergent formulation?

asked Apr 17, 2019 by priyanka.clay6

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Antibiotics are always sold in combination with lactobacillus. Why?

asked Apr 17, 2019 by priyanka.clay6

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The excreta of cattle do not contain any cellulose but human excreta may contain cellulose. Why?

asked Apr 17, 2019 by priyanka.clay6

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How do lactic acid bacteria help in increasing the nutritional quality of curd?

asked Apr 17, 2019 by priyanka.clay6

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On fermentation the dough of idli and dosa puffs up. Which metabolic pathway is responsible for this process?

asked Apr 17, 2019 by priyanka.clay6

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Consuming curd keeps the gastro-intestinal tract in tact. Give reason.

asked Apr 17, 2019 by priyanka.clay6

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A small amount of curd was added to cold milk for converting it into curd. But milk did not get curdled. Why?

asked Apr 17, 2019 by priyanka.clay6

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Scientists have succeeded in introducing toxin gene of Bacillus thuringiensis into plants like cotton. What purpose is achieved through this action?

asked Apr 17, 2019 by priyanka.clay6

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he set of positive even integers, with usual multiplication forms

asked Apr 17, 2019 by aswinravinarayanan

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Chloroform for anesthetic purposes is tested for it's purity with the reage

asked Apr 17, 2019 by vaidehii369

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