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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.
| 551. |
Which of the following enzymes is used in detergent and leather industries?A. lipaseB. ProteaseC. GlucoamylaseD. Glucose isomerase |
| Answer» Correct Answer - B | |
| 552. |
Bottled juices are clarified by the use ofA. PectinasesB. ProteasesC. LipasesD. Both (1) & (2) |
| Answer» Correct Answer - 4 | |
| 553. |
Which group of enzymes are used in detergent formulation and are helpful in removing oily stains from the laundary |
| Answer» Correct Answer - Lipases | |
| 554. |
__A__ enzyme is used to remove clots from the blood vessels of patients who have undergone __B__ leading to heart attack.A. A - Streptokinase, B - Myiocardial infarctionB. A - Lipases, B - ArteriosclerosisC. A - Proteases, B - Myocardial infarctionD. A - Pectinases, B - Atherosclerosis |
| Answer» Correct Answer - 1 | |
| 555. |
Match the column |
| Answer» Correct Answer - 1-d, 2-c, 3-b, d-a | |
| 556. |
The first antibiotic was discovered accidently by __A___ while working on __B__ .A. A-Waksman , B-StreptococcusB. A-Fleming, B-Penicillium notatumC. A-Waksman, B-Bacillus brevisD. A-Fleming, B-Staphylococci |
| Answer» Correct Answer - D | |
| 557. |
Name of the first antibiotic to be discovered :- |
| Answer» Correct Answer - Penicillin | |
| 558. |
The first antibiotic was discovered byA. R. KochB. Louis PasteurC. A. FlemingD. W. Flemming |
| Answer» Correct Answer - C | |
| 559. |
Use of living organisms for removing pollutants from the biosphere is calledA. Green movementsB. PhytoremediationC. BioremediationD. Remediation |
| Answer» Correct Answer - C | |
| 560. |
Commercial extraction of penicillin was done byA. Alexander FlemingB. Ernest ChainC. Howard FloreyD. More than one option is correct |
| Answer» Correct Answer - 4 | |
| 561. |
Trichoderma harizianum has proved to be a useful microorganism forA. Gene trasnfer in higher plants.B. Biological control of soil -borne plant pathogensC. Bioremediation of contaminated soilsD. Reclamation of wastelands. |
| Answer» Correct Answer - B | |
| 562. |
Trichoderma harizianum has proved to be a useful microorganism forA. Gene transfer in higher plantsB. Biological control of soil borne pathogens//biopestideC. Bioremediation of contaminated soilsD. Reclamation of waste land |
|
Answer» Correct Answer - B Trichoderma harzianum is useful for biological control of soil borne pathogens//biopesticide. |
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| 563. |
The antibiotic inhibiting cell wall formation in bacterial cell isA. ClavicinB. PencillinC. ErgotineD. None of the above |
| Answer» Correct Answer - B | |
| 564. |
Which is linked to discovery of Bordeaux mixture as fungicide ?A. Downy mildew of GrapesB. Loose smut of WheatC. Black rust of WheatD. Bacterial leaf blight of Rice |
| Answer» Correct Answer - A | |
| 565. |
Which is linked to discovery of Bordeaux mixture as fungicide ?A. Downy mildew of GrapesB. Loose amut of WheatC. Black rust of WheatD. Bacterial leaf blight of Rice |
|
Answer» Correct Answer - A Downy mildew ofGrapes is linked to discovery fo Bordeaux mixtur as fungicide. |
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| 566. |
(A): Mutations are always beneficial. (R): Generally it produces offsprings with advantageous features.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 - D | |
| 567. |
(A) : Hybridization results in the production of heterozygous individuals showing heterosis. (R) : Hybrids are always superior than their pure parents.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 - A | |
| 568. |
Who showed that yeast causes fermentation to produce beer and buttermilkA. Louis PasteurB. BuchnerC. KuhneD. Cruickshan |
| Answer» Correct Answer - 1 | |
| 569. |
Ts Cells areA. Tumour suppressing cellsB. T-suppressor cellsC. Tissue cellsD. Complementary tissue cells |
| Answer» Correct Answer - B | |
| 570. |
Continuous exposure to electromagnetic radiations affects human systems throughA. Shock waves in earsB. Continuous irritation to skin receptorsC. Irritating visceraD. Distortion of nerve signals |
| Answer» Correct Answer - D | |
| 571. |
Select the correct pair of microorganisms and product obtainedA. Monascus purpureus-produces large holes in swiss cheeseB. Saccharomyces cerevisiae-used for making wine and beer after distillationC. Streptomyces-produces streptokinase which is used to remove clotsD. Aspergillus niger-produces citric acid and butyric acid |
| Answer» Correct Answer - C | |
| 572. |
In fermentation of dough which is the main gas produced?A. Carbon dioxideB. HydrogenC. Both a and bD. Methane |
| Answer» Correct Answer - A | |
| 573. |
Microorganisms contribute in human welfare in the following fields.A. FementationB. Fermentation and decompositionC. Decomposition, fermentation and rettingD. Causing pathogenicity |
| Answer» Correct Answer - C | |
| 574. |
Why is the gas produced in a biogas plant and fermentation process of dough in bakery differentA. As because the microoganisms are diffrenetB. As the raw meterial is differentC. Both microoganisms and the raw material are differentD. Both the processes are competely different |
| Answer» Correct Answer - C | |
| 575. |
Enzymes used in synthesis of jams and jellies areA. Pectinases and proteasesB. StreptokinasesC. LipasesD. Amylases and Lipases |
| Answer» Correct Answer - A | |
| 576. |
Brandy is generally a product ofA. cider wineB. larger beerC. grape wineD. chempagne |
|
Answer» Correct Answer - C Brandy is generally prepared by the fermentataion of wine which in turn is prepared from grape juice by microbial action. |
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| 577. |
Identify the incorrect statement w.r.t. biogas plantA. It consists of a concrete tank, 10-15 feet dep in which bio-wastes are collected and a slurry of dung is fedB. A floating cover is placed over the slurry, which keeps on rising as the gas is consumed in the tankC. It has an outlet, which is connected to pipe to supply biogas to nearby housesD. The spent slurry is removed and may be used as fertiliser |
| Answer» Correct Answer - 2 | |
| 578. |
What for nucleopolyhedro viruses are being used now a-days? |
| Answer» Several methods of biological control are being used in the pest management to keep the pollution-free environment and yield clean, non-toxic and good quality products of human consumption. Baculoviruses are a group of viruses uses as biological control agents that occur naturally and are specific to some insects. Most of the baculoviruses belong to the genus Nucleopolyhedro virus. These viruses are excellent candidates for species-specific narrow spectrum insecticidal applications. They have been shown to have no negative impacts on plants, mammals, birds fish or even on non-target insects. This is especially desirable when beneficial insects are being conserved to aid in an overall integrated Pest Managment (IPM) Programme or when an acologically senstitive area is being treated. | |
| 579. |
Flooding of the field controls:A. FungiB. BacteriaC. VirusesD. Nematodes |
| Answer» Correct Answer - D | |
| 580. |
The primitive prokaryotes responsibel for the production of biogas from the dung of ruminant animals includeA. EubacteriaB. HalophilesC. MethanogensD. Thermoacidophiles |
| Answer» Correct Answer - C | |
| 581. |
The ministry of Environment and Forest has initiated Ganga action plan and Yamuna action plan (i) To save these major rivers of our country from pollution (ii) It is proposed to build a large number of sewage treatment plants (iii) Under these plans, only treated sewage may be discharged in the riverA. (i) and (ii) are correctB. (ii) and (iii) are correctC. (i) and (iii) are correctD. All are correct. |
| Answer» Correct Answer - 4 | |
| 582. |
During sewage treatment, biogases are produced which includes :A. methane , hydrogen sulphide and carbon dioxideB. methane, oxygen na hydrogen sulphideC. hydrogen , sulphide , methane and sulphur dioxideD. hydrogen sulphide, nitrogen and methane |
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Answer» Correct Answer - A During sewage treatment biogas is produced which include methane, hydrogen sulphide and carbon dioxide. Biogas is a mixture of gases (mainly methane) produced by the microbial activity and which may be used as fuel |
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| 583. |
What gases are produced in anaerobic sludge digestersA. Methane and `CO_(2)` onlyB. Methane, hydrogen sulphide and `CO_(2)`C. Methane, hydrogen sulphide and `O_(2)`D. Hydrogen sulphide and `CO_(2)` |
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Answer» Correct Answer - B Methane , hydrogen sulphide and `CO_(2)` are gases that are produced in anaerobic sludge digesters. These gases are produced during biogas production by the activity of bacteria called methanogens. |
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| 584. |
Trichoderma harizianum has proved to be a useful microorganism forA. Biological control of soil-borne plant pathogensB. Bioremediation of contaminated soilsC. Reclamation of wastelandsD. Gene transfer in higher plants |
| Answer» Correct Answer - 1 | |
| 585. |
Probiotics areA. Live microbial food supplementB. Safe antibioticsC. Cancer inducing microbesD. New kind of food allergens |
| Answer» Correct Answer - 1 | |
| 586. |
Gluconic acid is produced by fungiA. Aspergillus nighrB. A. purpurogenumC. Both (a) and (b)D. A. fumigatus |
| Answer» Correct Answer - A | |
| 587. |
the derivatives of gluconic acid are used as a source ofA. CalciumB. IronC. GlucoseD. Fat |
| Answer» Correct Answer - A | |
| 588. |
Amylases are employed for all, exceptA. Softening of breadB. Clearing of turgidity in juicesC. Preparation of cheeseD. Desizing of textile fibers |
| Answer» Correct Answer - C | |
| 589. |
Study the following statements regarding organic farming and select the correct ones (i) It utilises genetically modified crops like Bt cotton (ii) It uses only naturally produced inputs like compost and biofertilisers (iii) It does not use pesticides and urea (iv) It produces vegetables rich in vitamins and minerals.A. (B) and (C ) onlyB. (A) and (B) onlyC. (B), (C ), and (D)D. (C ) and (D) only |
| Answer» Correct Answer - 1 | |
| 590. |
Select the correct statement from the followingA. Activated sludge-sediment in settlement taks of sewage treatment plant is a rich source of aerobic bacteriaB. Biogas is produced by the activity of aerobic bacteria on animal wasteC. Methanobacterium is an aerobic bacterium found in rumen of cattleD. Biogas, commonly called gobar gas, is pure methane |
| Answer» Correct Answer - 1 | |
| 591. |
Which bacteria is utilized in Gober gas plantA. MethanogensB. Nitrifying bacteriaC. Ammonifying bacteriaD. Denitrifying bacteria |
| Answer» Correct Answer - 1 | |
| 592. |
During Biogas production acetic acid is transformed into the final product by the enzymes ofA. ClostridiumB. PseudomonasC. PenicilliumD. Methanobacillus |
| Answer» Correct Answer - D | |
| 593. |
What kinds of microorganisms are employed in the treatment of sewage? Give their activities. |
| Answer» In side the aeration tank, several aerobic microbes (microalgae, microfungi, bacteria and protozoa) are employed to consume a major part of organic matter. Then the anaerobic microbes digest the remaining part of organic matter into soluble substances and gaseous products. | |
| 594. |
LAB stands forA. Lactic acid bacteriaB. Lactobacillus acidophilus bacteriaC. Lactose acetaldhyde bacteriaD. Laboratory |
| Answer» Correct Answer - A | |
| 595. |
Most of the antibiotices are obtained fromA. ActinomycetesB. EubacteriaC. Ray fungiD. Both (1) and (2) |
| Answer» Correct Answer - D | |
| 596. |
Microbes that cannnot be cultured in cell - free extracts areA. Bacteria fungiB. fungiC. VirusesD. Algae |
| Answer» Correct Answer - C | |
| 597. |
Which of the following is maintained for optimum production of vineagerA. Anaerobic conditonB. Temperature of `65^(@)` CC. Aerobic conditionD. Microaerophilic condition |
| Answer» Correct Answer - A | |
| 598. |
Which of the following organic acid is produced by the fermentation of surgary syrups by Aspergilus niger and mucor species?A. Gluconic acidB. Lactic acidC. Citric acidD. Acetic acid |
| Answer» Correct Answer - C | |
| 599. |
Which is maitained for optimum production of vinegarA. Anaerobic conditionB. Temperature of `65^(@)C`C. Aerobic conditionD. Microaerophilic condition |
| Answer» Correct Answer - A | |
| 600. |
Organic acid used in preparation of vinegar isA. Acetic acidB. Citric acidC. Lactic acidD. Gluconic acid |
| Answer» Correct Answer - A | |