InterviewSolution
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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.
| 51. |
Antibiotics are mostly obtained fromA. FungiB. Actinomycetes//BacteriaC. Both A and BD. yanobacteria |
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Answer» Correct Answer - C Antibiotics are mostly got from fngi and actinomycetes//bacteria. |
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| 52. |
In 1928, a scientist discovered the first effective antibiotic. Scitist and antibiotic areA. Fleming - StreptomycinB. Fleming - PenicillinC. - PencillinD. Waksman - Streptomycin |
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Answer» Correct Answer - B In 1928, Fleming discovered the first effective antibiotic pencillin. |
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| 53. |
Match Column Iwith Column II and select the correct option using the codes given below:`{:("Column-I","Column-II"),("(a)Citric acid","(i)Trichoderma"),("(b)Cyclosporin A","(ii)Clostridium"),("(c )Statins","(iii)Aspergillus"),("(d)Butyric acid","(iv)Monascus"):}`A. iii,i,ii,ivB. iii,i,iv,iiC. i,iv,ii,iiiD. iii,iv,i,ii |
| Answer» Correct Answer - C | |
| 54. |
Match the columns I and II, and choose combination from the options given. `{:(,"Column I",,"Column II"), (a,"Citric acid",1,"Bacteria"),(b,"Acetic acid",2,"Fungi"),(c,"Butyric acid",,),(d,"Lactic acid",,),(e,"Ethanol"SA,,):}`A. a - 2, b - 1, c - 1, d- 1, e-2B. a - 1, b - 2, c - 1, d - 2, e - 1C. a - 2, b - 2, c - 1, d - 1, e - 2D. a - 2, b - 1, c - 1, d - 1, e - 2 |
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Answer» Correct Answer - D `{:(i,"Acetic acid","Acetobacter aceti (Bacteria)"),(ii,"Butyric acid","Clostridium butylicum (Bacteria)"),(iii,"Citric acid","Aspergillus niger(Fungus)"),(iv,"Lactic acid","Lactobacillus (Bacteria)"),(v,"Oxalic acid","Aspergillus niger (fungus)"):}` Yeast (Saccharomyces cerevisiae): production of ethanol. |
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| 55. |
Which of the following is wrongly matched in the given table ?A. `{:(" Microbe","Product"," Application"),("Clostridium butylicum","Lipase","removal of oil stains"):}`B. `{:(" Microbe","Product"," Application"),("Trichoderma polysporum","Cyclosporin A","immunosuppressive drug"):}`C. `{:(" Microbe","Product"," Application"),("Monascus purpureus","Statins","lowering of blood cholesterol"):}`D. `{:(" Microbe","Product"," Application"),("Streptococcus","Steptokinase","removal of clot from blood vessel"):}` |
| Answer» Correct Answer - 1 | |
| 56. |
Match Column - I with Column - II and select the correct option using the codes given below : `{:(,"Column-I", ,"Column-II"),(a., "Citric acid",(i),"Trichoderma"),(b.,"Cyclosporin A",(ii),"Clostridum"),(c.,"Statins",(iii),"Aspergillus"),(d.,"Butyric acid",(iv),"Monascus"):}`A. `{:(a,b,c,d),("(iii)","(i)","(ii)","(iv)"):}`B. `{:(a,b,c,d),("(iii)","(i)","(iv)","(ii)"):}`C. `{:(a,b,c,d),("(i)","(iv)","(ii)","(iii)"):}`D. `{:(a,b,c,d),("(iii)","(iv)","(i)","(ii)"):}` |
| Answer» Correct Answer - 2 | |
| 57. |
People recovering from long illness are often advised to include the alga Spiruline in their diet because it:A. makes the food easy to digestB. is rich in proteinsC. has antibiotic propertiesD. restores the intestnal microflora |
| Answer» Correct Answer - B | |
| 58. |
Biogas production from waste biomass with the help of methanogenic bacteria isA. one-step processB. two-step processC. three-step processD. multi step process |
| Answer» Correct Answer - 3 | |
| 59. |
Raw vegetables to be preserved in deep freezes must be pretreated withA. Food preservativesB. Sprayed with disinfectantsC. Dipped in hot waterD. All the above |
| Answer» Correct Answer - C | |
| 60. |
Viridin antibiotic is effective againstA. BacteriaB. fungiC. Gram positive bacteriaD. Gram negative bacteria |
| Answer» Correct Answer - B | |
| 61. |
The preparation oand flavoruing of leaves of tea and tobacco is due to the activities ofA. Streptococcus lactisB. Bacillus subtil megatheriumC. bacterD. Bacillus radicola |
| Answer» Correct Answer - B | |
| 62. |
Vineger is produced throughA. fermentation of sugar by LactobacillusB. fermentation of sugar by AspergillusC. fermentation of sugar by Saccharomyces cerevisiaeD. fermentation of sugar by yeast and fermentation of ethyl alcholo by acetic acid bacteria |
| Answer» Correct Answer - D | |
| 63. |
Vineger is prepared from alcohol with the help of :A. LactobacillusB. AcetobacterC. AzotobacterD. Rhizobium |
| Answer» Correct Answer - B | |
| 64. |
Biofertilisers includeA. Blue-gree algae, rhizobia, other nitrogen-fixing bacteria and mycorrhizal fungiB. Blue-green, algae, rhizobia and other nitrogen-fixing bacteriaC. Rhizobia, other nitrogen-fixing bacteria and mycorrhizal fungiD. Blue-green algae, rhizobia and mycor- rhizal fungi |
| Answer» Correct Answer - 1 | |
| 65. |
Biofertilisers includeA. Blue-green algae, rhizobia, other nitrogen fixing bacteria and mycorrhiza fungiB. Blue-green algae, rhizobia and other fixing bacteriaC. Rhizobia , other nitrogen fixing bacteria and mycorrhiza fungiD. Blue green algae, rhizobia and mycorrhiza fungi. |
| Answer» Correct Answer - A | |
| 66. |
Biofertilisers includeA. Nitrogen fixing bacteriaB. MycorrhizaC. Nitrogen fixing cyanobacteriaD. All of the above |
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Answer» Correct Answer - D Biofertilisersinclude nitrogen fixing bacteria, mycorrhiza and nitrogen fixing cyanobacteria. |
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| 67. |
Biofertilisers includeA. Blue-green algae, Rhizobium, other nitrogen-fixing bacteria and mycorrhizaB. Blue-green algae, Trichoderma, Rhizobium and other nitrogen-fixing bacteriaC. Rhizobium, other nitogen-fixing bacteria, NPV and mycorrhizaD. Blue-green algae, Rhizobium, Bt and mycorrhiza |
| Answer» Correct Answer - 1 | |
| 68. |
Rotenone ,a natural insecticide ,is obtained fromA. Azadirachta indicaB. Derris sp.C. Bacillus thuringiensisD. Phytophthora palmivora |
| Answer» Correct Answer - B | |
| 69. |
Assertion : Nucleic acid complexes alone cannot cause diseases. Reason : Only nucleoproteins can function as infectious agents.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - D Microbes are extensively used in huamn welfare but they sometimes proe harmful too. Most of the huma, animal and plant diseases occur because of infection of microoganisum. Viruses are nucleoportion complexes that cause disase. Diease causing nucleic acid complexes are termed viroids. Prions are proteinaceous infectious agents. |
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| 70. |
Which of the following microbes is a proteinacious infectious agent?A. FungiB. PrionsC. BacteriaD. Protozoa |
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Answer» Correct Answer - B Prions are highly resistance glycoprotein particles which function as infectious agents. Prions can also act as catalyst converting normal protein into prion state. Prions are not affected by proteases, nuclease, temperature upto `800^(@)C, UV` radiations and formaldehyde. |
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| 71. |
They help in increasing soil fertilityA. Pseudomonas and cerealsB. Bacillus and PenicilliumC. Salvinia and legumesD. Nostoc and legumes |
| Answer» Correct Answer - D | |
| 72. |
They help in increasing soil fertilityA. Pseudomonas and cerealsB. Bacillus and PenicilliumC. Salvinia and MarsileaD. Nostoc and legumes |
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Answer» Correct Answer - D They help in increasing soil fertility Nostoc and Legumes. |
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| 73. |
The process of increasing fertility of soil by Earthworms isA. Worm castingB. VermicompostingC. Compost beddingD. None of the above |
| Answer» Correct Answer - B | |
| 74. |
Which of the following are natural insecticides? (a) Rotenone (b) Pyethrum (c ) Nicotine (d) AzadirachtinA. (a), (b) and & (c ) onlyB. (a), (c ) & (d) onlyC. (a) & (b) onlyD. (a), (b), (c ) & (d) |
| Answer» Correct Answer - 4 | |
| 75. |
Which of the following is a symbiotic nitrogen fixer ?A. FrankiaB. AzollaC. GlomusD. Azotobacter |
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Answer» Correct Answer - 2 Frankia is a nitrogen fixing bacterium associated with the root nodulegume plants. Azolla is a fern which shows symboitic association with blue green alga Anabaena. Azotobacter is a free living nitrogen fixing bacterium. Glomus is the most common fungal partner of mycorrhiza. |
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| 76. |
How do mycorrhizae help the plants to grow better? |
| Answer» Correct Answer - By providing anchorage, water and minerals. | |
| 77. |
Which of the following curves correctly represents the process of antibiotic production by Streptomyces sp ?A. B. C. D. |
| Answer» Correct Answer - D | |
| 78. |
The infectious agents made up of RNA only areA. ViroidsB. BacteriaC. FungiD. Virus |
| Answer» Correct Answer - A | |
| 79. |
Match column I with column II and select the correct answer from the given codes. `{:(Column I,Column II),(A."Azolla",(i)"symbiotic" N_(2)- "fixer"),(B."Rotenone",(ii)"Symbiotic association with" N_(2)-"fixing"),(C."Crotolaria juncea",(iii)"Natural insecticide"),(D."Frankia",(iv)"Green manure"):}`A. `A-(ii),B-(iii),C-(iv),D-(i)`B. `A-(iii),B-(iv),C-(iii),D-(i)`C. `A-(ii),B-(i),C-(iv),D-(iii)`D. `A-(i),B-(iii),C-(iv),D-(ii)` |
| Answer» Correct Answer - A | |
| 80. |
Match column I with column II and select the correct answer from the given codes. `{:(Column I,Column II),(A."Mycorrhizae",(i)"Azadirachtin"),(B."Bacillus thuringiensis",(ii)"Phosphours nutrition"),(C."Root nodules",(iii)"Leghaemoglobin"),(D."Biopesticide",(iv)"Bioinsecticide"):}`A. `A-(iii),B-(i),C-(ii),D-(iv)`B. `A-(ii),B-(iii),C-(iv),D-(i)`C. `A-(ii),B-(iv),C-(iii),D-(i)`D. `A-(iii),B-(iv),C-(ii),D-(i)` |
| Answer» Correct Answer - C | |
| 81. |
Wine and beer are produced directly by fermentation whereas brandy and whisky require both fermentation and distillation. This is becauseA. fermentation is inhibited at the alcohol level of `10-18%`B. distillation prolong storageC. distillation improves qualityD. distillation purifies the beherage |
| Answer» Correct Answer - A | |
| 82. |
Thurioside isA. InsecticideB. FungicideC. AntibioticD. Weedicide |
| Answer» Correct Answer - A | |
| 83. |
Proteinaceous infectious particles causing diseasea areA. VirusB. ViroidsC. PrionsD. All of the above |
| Answer» Correct Answer - C | |
| 84. |
Match different organisms in column I with their uses in column I and select the correct answer from the given codes. `{:(Column I, Column II),(A."Lactobacillus acidophilus",(i)"Formation of dough"),(B."Saccharomyces cerevisiae",(ii)"Single cell proteins"),(C."Propionibacterium sharmanii",(iii)"Conversion of milk into curd"),(D."Spirulina",(iv)"Formation of Swiss cheese"):}`A. `A-(iii), B-(i), C-(ii), D-(iv)`B. `A-(iii),B-(i),C-(iv),D-(ii)`C. `A-(i),B-(iii),C-(iv),D-(ii)`D. `A-(i),B-(iii),C-(ii),D-(iv)` |
| Answer» Correct Answer - B | |
| 85. |
Pyrethrin is extracted fromA. Azadirachta indicaB. Helianthus annuusC. Poa annuaD. Chrysanthemum cinerariaefolium |
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Answer» Correct Answer - D Pyrethrin is extracted from Chrysanthemum cinarifolium. |
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| 86. |
Thurioside is proteinaceous toxin obtained fromA. BiofertiliserB. Green manureC. Bacterial originD. Farmyard manure |
| Answer» Correct Answer - C | |
| 87. |
Select a best fertilizer.A. Bacillus thuringiensis and lichensB. synthetic fertilizersC. Azolla and cyanobacteriaD. all of the above |
| Answer» Correct Answer - 3 | |
| 88. |
Nitrogen fixation in root nodules of Alnus is brought about byA. FrankiaB. AzorhizobiumC. BradyrhizobiumD. Clostridium. |
| Answer» Correct Answer - A | |
| 89. |
Nitrogen fixation in root nodules of Alnus is brought about byA. FrankiaB. AzorhizobiumC. BradyrhizobiumD. Clostridium |
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Answer» Correct Answer - A Frankia, a nitroge fixing mycelial bacterium (actinomycete), is associated symobiotically with root nodules of serval non-legume plants like Alnus (Alder) Myrica, Rubus, etc. |
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| 90. |
Which is correct?A. Legumes fix nitrogen through bacteria in their leavesB. Legumes fix nitrogens through bacteria in their rootsC. Legumes fix nitrogens independent of bacteriaD. Legumes do not fix nitrogen. |
| Answer» Correct Answer - B | |
| 91. |
Read the following statements and select the correct option. Statement 1: Besides curdling of milk, LAB also improve its nutritional quality by increasing vitamin `B_(12)`. Statement 2: LAB, when present in human stomach, chech disease causing microbes.A. Both statements 1 and 2 are correctB. Statement 1 is correct but statement 2 is incorrectC. Statement 1 is incorrect but statement 2 is correctD. Both statements 1 and 2 are incorrect |
| Answer» Correct Answer - A | |
| 92. |
Distillation of wine is necessary as itA. Increases qualityB. Prevents further fermentation and spoiling of wineC. Decreases toxicityD. Has no action on nature of wine |
| Answer» Correct Answer - B | |
| 93. |
Which is correct about nitrogen fixation by legumes. They fix nitrogen throughA. Specialised bacteria in their throughB. Specialised bacteria in their rootsC. Independent of bacteria that live in their rootsD. The statement is wrong. |
| Answer» Correct Answer - A | |
| 94. |
Which of the following antibiotics is not correctly matched with the source from which it is obtained ?A. Penicillin - Penicillium chrysogenumB. Bacitracin - Bacillus licheniformisC. Griseofulvin - Penicillium griseofulvumD. Streptomycin - Bacillus griseus |
| Answer» Correct Answer - D | |
| 95. |
Root nodules for nitrogen fixation of a nonleguminous trees possessA. FrankiaB. RhizobiumC. AzotobacterD. Thiobacillus |
| Answer» Correct Answer - A | |
| 96. |
The chemical fertilizer required for better rhizobial nitrogen fixation isA. PhosphorusB. PotassiumC. CalciumD. Sodium |
| Answer» Correct Answer - A | |
| 97. |
Which is false about antibiotics ?A. The term was coined by Waksman in 1942B. Antibiotics are capable of curing any diseaseC. some persons develop allergy to antibioticsD. Antibiotics are produced by microorganisms |
| Answer» Correct Answer - B | |
| 98. |
The least broad-spectrum antibiotics areA. CyclosporinsB. 4-QuinolonesC. GentamicinsD. Neomycins |
| Answer» Correct Answer - B | |
| 99. |
Which is false about antibiotics ?A. The term was coined by Waksman in 1942B. Antibiotics are capable of curing any diseaseC. Some persons develop allergy to antibioticsD. Antibiotics are produced by microorganisms. |
| Answer» Correct Answer - B | |
| 100. |
Distribution of clean and quality milk throughout the world has been made possible through work ofA. LeeuwenhoekB. KochC. PasteurD. Blackman |
| Answer» Correct Answer - C | |