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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Nostoc is used as biopesticide/biofertilliser. (Choose correct one)A. Tobacco budwormB. ArmywormC. BeetleD. Mosquito |
| Answer» Correct Answer - D | |
| 352. |
Dosa and dilli are the fermented prepatations of rice and black gram fermentation is done withA. LeuconostocB. StreptococcusC. SaccharomycesD. More than one option is correct |
| Answer» Correct Answer - D | |
| 353. |
Rennet is employed in :A. fermentationB. bread-makingC. preparation of cheeseD. synthesis of antibiotics |
| Answer» Correct Answer - C | |
| 354. |
In olden days , cheese was prepared by :A. AspergillusB. ClostridiumC. Rennet enzymeD. None of these |
| Answer» Correct Answer - C | |
| 355. |
In olden days cheese was prepared byA. AspergillusB. Rennet enzymeC. Clostridium bacteriaD. None of the above |
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Answer» Correct Answer - B In old days, cheese was prepared by using the enzyme rennet from the linning of stomach of sheep and goat. |
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| 356. |
Which of the following is not an advantage of mycorrhiza?A. Nitrogen fixationB. Resistance to root borne pathogensC. Tolerance to salinity and droughtD. Phosphorus absortion |
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Answer» Correct Answer - A Many members of genus Glomus form mycorrhiza. `*` In mycorrhiza the fungal symbiont absorbs P from soil and passes it into the plants. `*` Plants having mycorrhizal associations show other benefits also- (i) Resistance to root borne pathogens. (ii) tolerance to salnity and drought. (iii) Overall increase in plant growth and development. |
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| 357. |
Which is a microbial insecticide ?A. Bacillus thuringiensisB. B. subtilisC. B.polymixaD. B.brevis |
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Answer» Correct Answer - A Bacillus thuringiensis is a microbial insecticide. |
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| 358. |
The following figure shows A. Priamry treatmentB. Secondary treatmentC. Biological treatmentD. Both B and C |
| Answer» Correct Answer - D | |
| 359. |
Full potential of Pencillin as an antibiotic was established byA. Chain and FlemingB. Chain andFloreyC. Chain, Florey and FlemingD. Florey and Fleming |
| Answer» Correct Answer - B | |
| 360. |
(A) : Benzopyrene is a cancer inducing hydrocarbon. (R): It si found in coaltar and tobacco smoke.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - B | |
| 361. |
How do bioactive molecules of fungal origin help in restoring good health of humans? |
| Answer» Some bioactive molecules of fungai origin have been reported for their role in restoring good health of humans. Cyclosporin A that is used as an immuno-suppressive agent in organs transplant patients is produced by the fungus Trichoderma polysporum. Statins produced by yeast Monococcus purpureus have been commercialised as blood cholesterol lowering agents. | |
| 362. |
(A) : Breast cancer is the most common disease in women. (R) : It is generally found in women under the age of 25 years.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - C | |
| 363. |
Streptomyces venezuelae is used to obtain:A. chloromycetinB. aureomycinC. tetracyclineD. streptomycin |
| Answer» Correct Answer - 1 | |
| 364. |
Identify the parts labelled A, B & C w.r.t., biogas plant A. `{:(A,B,C),("Gas","Sludge","Dung water"):}`B. `{:(A,B,C),("Gas","Gas holder","Digester"):}`C. `{:(A,B,C),("Gas holder","Sludge","Dung water"):}`D. `{:(A,B,C),("Gas holder","Digester","Dung water"):}` |
| Answer» Correct Answer - 2 | |
| 365. |
What is the composition of the biogas?A. Methane, carbon dioxide, oxygen etc.B. Methane, carbon dioxide, hydrogen, nitrogen dioxide etc.C. Methane, carbon dioxide, hydrongen etc.D. Methane , carbon dioxide, sulphur dioxie etc. |
| Answer» Correct Answer - 3 | |
| 366. |
Which is used as bioinsecticideA. Bacillus polymyxaB. Cylindrospermum licheniformeC. Phytophthora palmivoraD. Chrysanthemum cinerarifolium |
| Answer» Correct Answer - D | |
| 367. |
Select the incorrect matchA. Citric acid - Aspergillus nigerB. Strepto kinase - StreptococcusC. Butyric acid -Clostridium acetobutylicumD. Cyclosporin A- Monascus purpureus |
| Answer» Correct Answer - D | |
| 368. |
Which of these methods is not part environmental pest controlA. IntercroppingB. Interducing predators or parasitesC. Plant trap cropsD. Sterile male technique |
| Answer» Correct Answer - D | |
| 369. |
Match the column and find the correct option A. a-iii, b-iv, c-i, d-iiB. a-iii, b-i, c-ii, d-ivC. a-iii, b-i, c-iv, d-iiD. a-i, b-iv, c-ii, d-iii |
| Answer» Correct Answer - C | |
| 370. |
Which is wrongly matchedA. Clostridium butylicum - lipase removal of oil stainsB. Trichoderma polysporum- Cyclosporin A- Immunosuppressive drugC. Monascs purpureus-Statins-Lowering of blood cholesterolD. Streptococcus-Streptokinase-Removal of clot from blood vessel |
| Answer» Correct Answer - A | |
| 371. |
Which one is being tried in india as biofuel substitute for fossil fuels?A. JatrophaB. MusaC. AegilopsD. Azadirachta |
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Answer» Correct Answer - A Jatropha is being tried in India in India as biofuel substitute for fossil fuels. |
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| 372. |
Select the correct statement from the followingA. Methanobacterium is an aerobic bacterium found in rumen of cattle.B. Biogas commonly called gobar gas is pure methane.C. Activated sludge sediment in sttlement tanks of sewage treatment plant is rich sources of aerobic bacteria.D. Biogas is produced by te activity of aerobic bacteria on animal waste. |
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Answer» Correct Answer - C Activated sludge sediment in settlement tanks of sewage treatment plant is rich sources of aerobic bacteria |
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| 373. |
Which one is wrongly matched?A. Detergents-lipaseB. Alcohol-NitrogenaseC. Textile-amylaseD. Fruit juice-pectinase |
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Answer» Correct Answer - B Alcohol - zymase |
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| 374. |
A common biocontrol agent for the control of plant diseases isA. Bacillus thuringiensisB. GlomusC. Trichoderma harzianumD. Baculovirus |
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Answer» Correct Answer - C A common biocontrol agent for plant diseases ids Trichoderma. |
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| 375. |
Which of the following is not used as a biopesticide ?A. Xanthomonas campesterisB. Bacillus thuringiensisC. Trichoderma harzianumD. Nucleopolyhedrovirus |
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Answer» Correct Answer - A `*` Bacillus thuringiensis (Bt) bacteria is an example of microbial biocontrol agents to control butterfly caterpillars. `*` Trichoderma (fungus) is used as biological control is the treatment of plant disese. Trichoderma species are free living fungi that are very common in root ecosystems. They are effective biocontrol agents of several//certain plant pathogens. ltb. `*` Baculoviruses are pathogens that attack insects and other artropods. Majority of baculoviruses used as biocontrol agents are in eh genus Nucleopolyhedro virus. |
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| 376. |
Which one of the following is not used in organic farming ?A. EarthwormB. OscillatoriaC. SnailD. Glomus |
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Answer» Correct Answer - C Snail is not used in organic farming. |
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| 377. |
An example of endomycorrhiza isA. GlomusB. AgaricusC. NostocD. Rhizobium |
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Answer» Correct Answer - A An example of endomycorrhiza is Glomus. |
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| 378. |
which one of the following is not used in organic farmingA. SnailB. GlomusC. EarthwormD. Oscillatoria |
| Answer» Correct Answer - 1 | |
| 379. |
Assertion. The technologies developed in the laboratories have to be gradually scaled up to industrial levels. Reason. To obtain the product in large scale.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - A | |
| 380. |
Bacterium useful in dairy and curdling of milk is :A. MicrococcusB. Streptococcus lactisC. Streptomyces rimosusD. Diplococcus pneumoniae |
| Answer» Correct Answer - 2 | |
| 381. |
Commercial acetic acid is used in the prepa- ration ofA. meadB. vinegarC. wineD. alcohol |
| Answer» Correct Answer - 2 | |
| 382. |
The rote of hydeolytic enzymes during bioges production isA. solidificationB. solubilisationC. methane productionD. acidogenesis |
| Answer» Correct Answer - B | |
| 383. |
Which of the following is not used for disinfecting water during tertiary treatment ?A. MicrobesB. ChlorineC. Perclorate saltsD. Ozone gas |
| Answer» Correct Answer - A | |
| 384. |
The technology of biogas production was developed in india mainly use to the efforts ofA. IPMB. IARI and KVICC. IRRID. ICAR |
| Answer» Correct Answer - 2 | |
| 385. |
The technology of biogas production was developed in India mainly due to the efforts of |
| Answer» Correct Answer - IARI & KVIC | |
| 386. |
Which two action plane initiated by the ministry of environment and forests to save major rivers of our country from pollution ? |
| Answer» Correct Answer - Ganga action Plan & Yamuna action Plan | |
| 387. |
Name the first organic acid produced by microbial farmentation. |
| Answer» Correct Answer - Lactic acid. | |
| 388. |
(A) : Rapid cell divison in an explant can be induced with cytokinin. (R) : The mass of differentiated tissue produced is called callus.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - C | |
| 389. |
Which one of the following pairs is wrongly matchedA. Yeast - EthanolB. Streptomycetes - AntibioticC. Coliforms - VinegarD. Methanogens - - Gobar gas |
| Answer» Correct Answer - 3 | |
| 390. |
Problotics areA. cancer inducing microbesB. new kind of food allergensC. live microbial food supplementD. safe antibiotics |
| Answer» Correct Answer - 3 | |
| 391. |
Which one is wrongly matched?A. Yeast - statinsB. Acetobacted aceti - Acetic acidC. Aspergilus niger - Citric acidD. Costridium butylicum - Lactic acid |
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Answer» Correct Answer - D Clostridium butlicum-Butric acid. |
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| 392. |
Which is a fungicideA. DDTB. Bordeaux mixtureC. 2,4 - DD. DCMU |
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Answer» Correct Answer - B Bordeaux mixture is a fungicide. |
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| 393. |
Which one of the following is not a biofertilizer?A. NostocB. MycorrhizaC. AgrobacteriumD. Rhizobium |
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Answer» Correct Answer - C Agrobacterium is not a biofertilizer. |
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| 394. |
Which is incorrec about fermetation?A. Toddy is prepared by fermenting palm sap.B. Propionibacterium is used in fermentation of cheese.C. Puffed up apperrance of dough is due to production of `CO_(@)`D. Fermentation in muscles produces alcohol. |
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Answer» Correct Answer - D `*` To Toddy is prepared by fermenting palm sap. `*` Propionibacterium is used in fermentation of cheese. `*` Puffed up appearance of dough is due to productionof `CO_(2)`. Fermentation in muscles produces lactic acid. |
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| 395. |
Which one is correct?A. Activated sludge is digested by anaerobic bacteria to produce marsh gas.B. Aspergillus niger produces Cyclosporin - A.C. Fleming, Chain and Florey were awarded Nobel Prize for penicillin.D. BOD is amount of oxygen produced by bacteria during decomposition |
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Answer» Correct Answer - C `*` Aspergillus niger produces sitric acid. Fleming, Chain Florey were awaarded Nobel Prize for penicillin. `*` BOD is amount of oxygen consumed by bacteria during decomposition. |
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| 396. |
In gobar gas, the maximum amount is that ofA. PropaneB. Methane and hydrogenC. ButaneD. Carbon dioxide |
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Answer» Correct Answer - B In gobar gas, the maximum amount is that of methane. |
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| 397. |
Domestic sewage of large citiesA. Has very high amount of suspended solid and dissolved saltsB. When treated in sewage treatment plant does not riquire aerationC. Has high BOD as it contains both aerobic and anaerobic bacteriaD. Is processed by aerobic and then anaerobic bacteria in secondary treatment in sewage treatment plant |
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Answer» Correct Answer - D Domestic sewage of large cities is processed by aerobic andd then anaaerobic bacteria in secondary treatment in sewage treatment plant. |
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| 398. |
The domestic sewage in large citiesA. Has a high BOD as it containing both aerobic and anaerobic bacteriaB. Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)C. When treated in STPs does not really require the aeration step as the sewage contains adequate oxygenD. Has very high amounts of supended solids and dissolved salts |
| Answer» Correct Answer - 2 | |
| 399. |
Domestic sewage of large citiesA. Has very high amount of suspended solids and dissolved saltsB. When treated in sewgae treatment plant does not require aerationC. Has high BOD as it contains both aerobic and anaerobic bacteriaD. Is processed by aerobic and then anaerobic bacteria in secondary treatment in sewage treatment plant |
| Answer» Correct Answer - D | |
| 400. |
Which one of the following statements is cor- rectA. Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants.B. Cyanobacteria such as Anabaeena and Nostoc are important mobilizers of phos- phates and for plant nutrition in soil.C. At present it is not possible to grow maize without chemical fertilizersD. Extensive use of chemical fertilizers may tead to eutrophication of nearby water bodies. |
| Answer» Correct Answer - 4 | |