Industrial Biotechnology MCQs
Fermentation theory was proposed by ____________.
A. Louis Pasteur.
B. Moritz traube.
C. Alexander Fleming.
D. Edward Buchner.
ANSWER: B
Which one of the following is used as both carbon and nitrogen source?
A. Corn steep liquor.
B. Peanut meal.
C. Soya meal.
D. Urea.
ANSWER: A
The valve commonly used to regulate the flow of water/steam is ________.
A. Plug.
B. Ball.
C. Pinch.
D. Globe.
ANSWER: D
The rising tube and the down coming tubes are the features of ________ fermenter.
A. Airlift.
B. Packed bed.
C. Tower.
D. Bubble column.
ANSWER: A
_____ is the optimal pH for ethanol production using yeast.
A. 2.
B. 3.
C. 4.
D. 7.
ANSWER: C
Which among the following is widely used in bakers yeast production?
A. S. cerevisiae.
B. S. uvarum.
C. S. carlsbergensis.
D. Candida sp.
ANSWER: A
The most common carbon and energy source used for bakers yeast production is ___.
A. Starch.
B. Molasses.
C. Soybean meal.
D. Sulfite waste liquor.
ANSWER: B
Who coined the term antibiotic?
A. Alexander Fleming.
B. S. Waksman.
C. Louis Pasteur.
D. Edward Jenner.
ANSWER: D
Antibiotics are mostly obtained from _____.
A. Fungi.
B. Actinomycetes.
C. Cyanobacteria.
D. Both A and B.
ANSWER: C
Antibiotics tend to be _______ metabolites.
A. Primary.
B. Secondary.
C. Tertiary.
D. Quaternary.
ANSWER: B
Industrial Biotechnology MCQs and Answers
Example for live viral vaccine is ______.
A. Poliomyelitis.
B. Influenza.
C. Pertussis.
D. Tetanus.
ANSWER: A
Which of the following is a toxoid?
A. Pertussis.
B. Hepatitis B.
C. Rubella.
D. Tetanus.
ANSWER: D
_________is the example for killed bacterial vaccine.
A. Tetanus.
B. Measles.
C. Pertussis.
D. Diphtheria.
ANSWER: C
Starch could be hydrolyzed by ______.
A. Sulphuric acid.
B. Hydrochloric acid.
C. Nitric acid.
D. Sulphonic acid.
ANSWER: B
In the manufacture of glucose the first step liquefaction involves the conversion of starch to _______ maltodextrin.
A. High Dextrose.
B. Low Dextrose.
C. Low Dextrose Equivalent.
D. High Dextrose Equivalent.
ANSWER: C
The microbial enzyme capable of converting glucose directly to fructose was reported by ________.
A. Richard.
B. Richard and Kooi.
C. Kooi and Michael.
D. Albert and Michael.
ANSWER: B
Starch undergoes hydrolysis to produce anhydrous alcohol.
A. Protein.
B. Enzyme.
C. Glucose.
D. Maltose.
ANSWER: B
is the major feed stock for the production of fuel alcohol.
A. Sweet potato.
B. Corn starch.
C. Starch.
D. Sugar beet.
ANSWER: B
Starch hydrolysis produce glucose, which is converted by the yeast to____________.
A. Pyruvic Acids.
B. Ethanol.
C. Phosphenol Pyruvate.
D. Carbon Dioxide.
ANSWER: B
L- glutamate is used in food as ________
A. Preservative.
B. Antibiotic.
C. Taste inducer.
D. All the above
ANSWER: C
Industrial Biotechnology Questions and Answers
__________method is used to produce acid in large scale.
A. Hydrolysis.
B. Fermentation.
C. Enzymatic.
D. Degradation.
ANSWER: B
Amino acids are used as __________.
A. Foods.
B. Additive.
C. Soaps.
D. Oils.
ANSWER: B
______________amino acids are used in cosmetics.
A. Alanine.
B. Arginine.
C. Proline.
D. L- serine.
ANSWER: D
Regulation of proline biosynthesis is done by ________ inhibition.
A. Feed Back.
B. Enzyme.
C. Metabolite.
D. Co-Factor.
ANSWER: A
In repressor the amino acid product of the pathway binds to a specific repressor protein called as _____ .
A. Repressor.
B. Co Repressor.
C. Enzyme Modulator.
D. Promoters.
ANSWER: B
The parent strain which synthesize all the aminoacids called _____ .
A. Autotrophic.
B. Prototrophic.
C. Allotrophic.
D. Auxotrophic.
ANSWER: B
_____ enzymes are the end product in the synthesis of unbranched pathway of Serratia marcescens.
A. Alanine.
B. Proline.
C. Histidine.
D. Arginine.
ANSWER: B
_______ is the member of pyruvate family.
A. Valine.
B. Methionin.
C. Isoleucine.
D. Tyrosine.
ANSWER: A
________ belongs to the family of aromatic amino acids.
A. Tyrosine.
B. Valine.
C. Threoine.
D. Leucine.
ANSWER: A
_____ is used to remove the cell wall of bacteria.
A. Pectinase.
B. Amylase.
C. Lysozyme.
D. Lactase.
ANSWER: C
Industrial Biotechnology Solved MCQs
Aspartate, the starting material of the lysine pathway itself a product of a ______ pathway.
A. Branched.
B. Linear.
C. Regulation.
D. Degradation.
ANSWER: A
___ is used as fungicide in agriculture.
A. Polymyxin.
B. Polyoxin D.
C. Tetracycline.
D. Chloramphenicol.
ANSWER: B
_______ belongs to penicillin.
A. Methicillin.
B. Kanamycin.
C. Ribostamycin.
D. Streptomycin.
ANSWER: A
Ampicillin and amoxicillin are _______ penicillins.
A. Synthetic.
B. Organic.
C. Semisynthetic.
D. Neutral.
ANSWER: C
E. coli exhibits resistant to ______.
A. Ampicillin.
B. Streptomycin.
C. Ribostamucin.
D. Methiacillin.
ANSWER: A
The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to______________.
A. traces of cobalt
B. traces of nickel
C. traces of iron
D. none of these
ANSWER: C
_____ is natural products produced by Streptomyces cattleya.
A. Carbapenems.
B. Thienamycin.
C. Neomucin.
D. Cefazolin.
ANSWER: B
γ-lactams is a ___________compound.
A. Semi synthetic.
B. Synthetic.
C. Organic.
D. Chemical.
ANSWER: B
Biosynthesis of penicillin and cephalosporin requires ______and ______amino acids.
A. Valine, Cysteine.
B. Arginine, Glycine.
C. Glycine, Valine.
D. Aniline, Cysteine.
ANSWER: A
_______ is an intermediate in the synthesis of lysine biosynthesis.
A. Arginine.
B. Lysine.
C. Glycine.
D. Methionine.
ANSWER: B
Industrial Biotechnology Important MCQs
Lysine inhibits the production of ____ in fermentations. ______ inhibits the production of penicillin fermentation.
A. Glycine.
B. Lysine.
C. Alanin.
D. Acylampicillin.
ANSWER: B
Cycloserine may be isolated from the cultures of
A. S. orchidaceus
B. S. lavendulae
C. S. garyphalus
D. All of these
ANSWER: D
Primary treatment is the removal of ________ objects.
A. Small.
B. Large.
C. Semisolids.
D. Dirt.
ANSWER: B
Sediment solid particle are removed by _______ chamber.
A. Grid.
B. Filter.
C. Semi Solids.
D. Hollow.
ANSWER: A
The secondary treatment used to remove contaminants like _____.
A. Bacteria and fungi.
B. Virus.
C. Protozoa.
D. Plants.
ANSWER: A
What is the abbreviation of BOD?
A. Biological Oxygen Demand.
B. Biological Oxide Demand.
C. Bacterial Oxygen Demand.
D. Biological Oxygen Determination.
ANSWER: A
Filter and activated sludge process in _______treatment process..
A. Secondary.
B. Tertiary.
C. Anaerobic.
D. Primary.
ANSWER: A
Chemoheterotrophs degrade many organic ______ containing substrates with the release of ammonia.
A. Oxygen.
B. Nitrogen.
C. Phosphate.
D. Nitrate.
ANSWER: B
The autotrophic nitrifying bacteria oxidize ammonia to nitrate by _________ .
A. Nitrococcus.
B. Nitrosomonas.
C. Nitromonas.
D. Nitriccoccus.
ANSWER: B
The autotrophic nitrifying bacteria oxidase nitrite to nitrate by _______.
A. Nitrobacter.
B. Nitrosomonas.
C. Nitrococcus.
D. Nitromonas.
ANSWER: A
Industrial Biotechnology Past Papers MCQs
Numerous bacterial species participate in the ________ forming stage.
A. Acid.
B. Oxygen.
C. Basic.
D. Phosphate.
ANSWER: A
_________means conversion of monomeric compounds to higher organic acids.
A. Acidogenesis .
B. Methanogenesis.
C. Monogenesis.
D. Phaspogenesis.
ANSWER: A
____ compounds are highly oxidized on thermodynamic grounds.
A. Sodium.
B. Chlorinated.
C. Carbon.
D. Sulphate.
ANSWER: B
The symbiotic relationship between two organisms of different species line in close and benefit each other is called as ___________.
A. Mutualism.
B. Commensalisms.
C. Socialism.
D. None of the above.
ANSWER: A
_____ is a product of toluene degradation which induces the expression of the genes of the pathway.
A. Benzoate.
B. Parathion.
C. Biphenyl.
D. Acetone.
ANSWER: A
Xyl genes encode _______ enzymes.
A. Catabolic.
B. Metabolic.
C. Ananbolic.
D. Oxidative.
ANSWER: A
Percolation of liquid through a pile of ore fragment to dissolve the metals in the ore is called _______.
A. Opencut Mine.
B. Smelting.
C. Tailings.
D. Dump Leaching.
ANSWER: D
The 95% ethanol is equivalent to_____________.
A. 190
B. 110
C. 170
D. 120
ANSWER: A
______ refuse material that results from washing or other treatment of ground ore.
A. Tailings.
B. Smelting.
C. Dump leaching.
D. Open cut mine.
ANSWER: A
______ depends on the ability of various species of the acidophilic microorganisms.
A. Indirect leaching.
B. Direct leaching
C. Dump leeching.
D. Smelting.
ANSWER: A
Industrial Biotechnology MCQs for FPSC
____ ore is obtained by open cut mining.
A. Uranium.
B. Copper.
C. Iron.
D. Silver.
ANSWER: B
_______ ore does not exist as a sulfide but as the oxide.
A. Copper.
B. Iron.
C. Gold.
D. Uranium.
ANSWER: D
Microorganism immobilizes metal ions by _____ process.
A. Active and passive.
B. Leaching.
C. Dumping.
D. Smelting.
ANSWER: A
Biosorption is a ______ process seen with both living and dead cells.
A. Active.
B. Passive.
C. Neutral.
D. Negative.
ANSWER: B
The free ferrous ions react with hydrogen sulfate to form amorphous ______.
A. Ferric sulfide.
B. Ferrous sulfide.
C. Ferric chloride.
D. Ferrous sulphate.
ANSWER: B
_____ remove mercury from waste water.
A. Dimethyl mercury.
B. Methyl mercury.
C. Methyl sulfide.
D. Methyl and mercuric sulfide.
ANSWER: A
____ bacteria use carbondioxide as a sole source of carbon.
A. Sulphur containing.
B. Nitrifying.
C. Metal cleating.
D. Metal adsorption.
ANSWER: B
________ bacteria convert ammonia to nitrate.
A. Nitrobacter.
B. Nitrifying.
C. Pseudomonas.
D. Flavobacter.
ANSWER: A
Which of the following substance is employed to neutralize the lactic acid as it is produced (because lactic acid bacteria do not tolerate high concentrations of acid?
A. CaCO3
B. (NH4)2 HPO4
C. MgSO4
D. Na2SO4
ANSWER: A
____ are inorganic materials that used as carriers.
A. Alumina.
B. Soil.
C. Acids.
D. Water.
ANSWER: A
Industrial Biotechnology MCQs for PPSC
Who insists that oil should be autoclaved?
A. Fennel.
B. Buell.
C. Weston.
D. Raper.
ANSWER: A
Storage at very low temperature or by using nitrogen source is called as ________ preservation.
A. Lyophilized.
B. Cryogenic.
C. Glycerol.
D. Mineral oil.
ANSWER: B
A culture containing a single type of microorganism is called ______.
A. Mono culture.
B. Pure culture.
C. Auxenic culture.
D. Slant culture.
ANSWER: B
Gel formations are formed by the interactions of ________.
A. Carbon.
B. Ion.
C. Hydrogen.
D. Carboxylic groups.
ANSWER: B
Which species from the followings is resistant to methyl tryptophan?
A. Candida utilis
B. E. coli
C. B. subtilis
D. Hansenula anomala
ANSWER: C
________ is an example for bacterial polysaccharides.
A. Citrobacter.
B. Clavibacter.
C. Azotobacter.
D. Brevibacterium.
ANSWER: C
Koji process is also called as _______fermentation.
A. Liquid State
B. Gas State
C. Aqueous State.
D. Solid State.
ANSWER: D
Allosteric enzyme has ______ site to bind the regulator.
A. Regulatory.
B. Substrate.
C. Receptor.
D. Repressor.
ANSWER: A
Conversion of glucose by _____ pathway yield ethanol and carbondioxide.
A. Glycolysis.
B. HMP.
C. TCA.
D. Glycogen.
ANSWER: A
The first residue from fermented substrate distillation is called as _______.
A. Alcohol.
B. Stillage.
C. Liquid.
D. Ethanol.
ANSWER: B
Industrial Biotechnology MCQs for KPPSC
The conversion of glucose to ethanol and CO2 is a _____ reaction.
A. Endothermic.
B. Exothermic.
C. Mesothermic.
D. Thermophilic.
ANSWER: B
_____ is used as a substrate in the production of ethanol by Zymomonas melitis.
A. Xylose.
B. Lactose.
C. Fructose.
D. Maltose.
ANSWER: A
_____ is a semisynthetic penicillin.
A. Acylampicillins
B. Cephalosporins.
C. Streptomycin.
D. Dibekacin.
ANSWER: A
In fermentation process usage of computer are introduced in _______ stage.
A. I
B. II
C. III
D. IV
ANSWER: D
In antibiotic production ________ is used as antifoam agent.
A. Fats and oils.
B. Carbohydrates
C. Protein
D. Amino acids.
ANSWER: A
Alcohol production from starch and raw sugar utilizes selected strains of__________________.
A. Saccharomyces cerevisiae
B. Candida pseudotropicalis
C. Candida utilis
D. none of these
ANSWER: A
In ________ method, the enzyme producing culture is grown on the surface of a suitable semisolid substrate.
A. Semisolid culture.
B. Submerged culture.
C. Auxenic culture.
D. All the above.
ANSWER: A
____ is being used as inducer in celluloseproduction.
A. Isomaltose.
B. Dextran.
C. Sucrose.
D. Cellulose.
ANSWER: D
______ are widely used in chemical as well as fermentation industries.
A. Enzymes.
B. Brewery products.
C. Industrial solvents.
D. All the above.
ANSWER: C
_________ is the mixing process carries out in a fermenter.
A. Agitation.
B. Filtration.
C. Purification.
D. Sedimentation.
ANSWER: A
Most Important Industrial Biotechnology MCQs
_________ acts by the end product binding to the enzyme at an allosteric site.
A. Repression.
B. Inhibition.
C. Stimulation.
D. Activation.
ANSWER: B
_________ occurs at the gene level by a derivative of the end product combing with the genome to prevent the transcription of mRNA.
A. Inhibition
B. Stimulation.
C. Repression.
D. Activation.
ANSWER: C
Fungal amylases using stationary culture with wheat bran utilizes____________.
A. A. oryzae
B. A. niger
C. A. flavus
D. S. cerevisiae
ANSWER: A
_______ sterilization is used in filtering the suspended particles.
A. Filter.
B. Heat.
C. Detergent.
D. Autoclave.
ANSWER: A
___________ fermentor is used to immobilize the cells.
A. Packed glass bead.
B. Air lift.
C. Bubble column.
D. None of the above.
ANSWER: A
Aspergillus niger is used in _____ fermentation.
A. Citric acid.
B. Carboxylic acid.
C. Alcohol.
D. Vitamin B12.
ANSWER: A
_______ is the basic ingredients in beer Production.
A. Malted barley.
B. Grapes.
C. Lemon.
D. Wheat.
ANSWER: A
People who can’t digest malt beer can use _______
A. Wheat.
B. Sorghum.
C. Corn.
D. Rice.
ANSWER: B
_______ is used to enhance beer production.
A. Hops.
B. Sugar
C. Glucose.
D. Sucrose.
ANSWER: A
___ is responsible for fermentation of beer.
A. Yeast.
B. Bacteria.
C. Fungi.
D. None of above.
ANSWER: A
Industrial Biotechnology MCQs for SPSC
____ metabolites the sugars extracted from grains, which produces alcohol and CO2.
A. Bacteria.
B. Yeast.
C. Fungi.
D. Molds.
ANSWER: B
Malting step is used in _________ process.
A. Baking.
B. Brewing.
C. Viniger fermentation.
D. Canning.
ANSWER: B
________ is the separation process of wort.
A. Mashing.
B. Milling.
C. Lautering
D. Malting
ANSWER: C
____ is a process of combining mixture of milled grains.
A. Mashing.
B. Milling
C. Malting
D. Lautering
ANSWER: A
______ is the method involved in beer production.
A. Infusion
B. Fission
C. Lautering
D. None of the above
ANSWER: A
______ F temperature is used to ferment beer.
A. 55-60
B. 60-65.
C. 70-75.
D. 80-85.
ANSWER: A
_____ causes contamination in beer production.
A. Aspergillus.
B. Pseudomonas.
C. Candida
D. Streptomyces.
ANSWER: B
________ is made up of milk yeast.
A. Tartte
B. Sake
C. Kvass
D. Pombe
ANSWER: A
Which of the following organism produces enzyme taka diastase?
A. A. oryzae
B. B. subtilis
C. A. niger
D. S. cerevisiae
ANSWER: A
______ is used to synthesis dextran.
A. Glucose
B. Sucrose
C. Maltose
D. Galactose
ANSWER: B
Industrial Biotechnology MCQs for ETEA, Lecturer Biotechnology
In food industry ____ is used as thicking agent.
A. Dextran
B. Xantham gum
C. Chymosin.
D. Trypsin.
ANSWER: A
Dextran was discovered by _______.
A. Louis Pasteur
B. Selman waksman.
C. Howard Horey.
D. Ernst chain.
ANSWER: A
_______is used for blood clotting.
A. Xantham gum
B. Dextran.
C. Trypsin.
D. chymosin.
ANSWER: B
______ is the use of micro-organism metabolism to remove pollutants.
A. Biodegradation
B. Bioremediation
C. Precipitation
D. Mineralization
ANSWER: B
amylases are produced by ________ fermentation.
A. Continuous
B. Stirred
C. Fed batch.
D. Bubble column.
ANSWER: C
Xantham gum is a ______ .
A. Polysaccharide
B. Monosaccharide
C. Disaccharide
D. Protein
ANSWER: A
______ control concerted feed back inhibition.
A. Kinases
B. Synthase
C. Aspartokinase
D. Carboxylase
ANSWER: C
___ mutant is used in production of lysine.
A. Auxotropic
B. Heterotropic
C. Mesotropic
D. Autotrophic
ANSWER: A
_________ system is sensitive than surface systems in citric acid production.
A. Submerged
B. Decotation
C. Upward
D. Downward
ANSWER: A
_______ is used to separate the mycelium during citric acid production.
A. Filtration
B. Sedimentation
C. Centrifugation
D. Rotation
ANSWER: C
Industrial Biotechnology MCQs Previous Papers MCQs
Which of the following is not an industrial product made by the fungus Aspergillus niger?
A. Galactosidase
B. Citric acid
C. Gluconic acid
D. Lysine
ANSWER: D
_______ reactor is used to produce citric acid.
A. Bubble
B. Airlift
C. Tower
D. Loop jet.
ANSWER: B
Fermentation carrying out in a brewing industry is _______ fermentation.
A. Continous
B. Batch
C. Fed batch
D. Continous batch.
ANSWER: B
______ is a substrate for fungal single cell protein.
A. Molasses
B. Sugar beet.
C. Corn steep liquor.
D. Starch.
ANSWER: A
Algae are ______ growers.
A. Very fast.
B. Very slow.
C. Relatively slow.
D. Rapid.
ANSWER: C
_______ is an example of mushroom.
A. Agaricus
B. Pharicus
C. Cereus
D. Proteases
ANSWER: A
Acidification of milk is done by ____ acid.
A. Citric
B. Lactic
C. Sulfuric
D. Acetic
ANSWER: B
In cheese fermentation process, ____ is produced as a by product.
A. Curd.
B. Whey.
C. Protein.
D. Raw milk.
ANSWER: B
_______ vaccine contains purified antigens instead of whole organisms
A. Viral
B. Subunit
C. Attenuated
D. Live-attenuated
ANSWER: B
______ vaccines are developed against capsulated bacteria.
A. Subunit
B. Viral
C. Conjugate
D. Attenuated
ANSWER: C
Industrial Biotechnology MCQs with Answers
_____ is an example of live-attenuated vaccine
A. HBV
B. BVH
C. Vaccinia virus.
D. Haemophilus influenzae virus.
ANSWER: A
_________ polysaccharide capsules are used as vaccines.
A. Plant
B. Viral
C. Bacterial
D. Yeast
ANSWER: C
_______ are manufactured from bacterial toxins.
A. Endotoxin
B. Toxoids
C. Ectotoxin
D. Both a and b
ANSWER: B
_______ is responsible for the mottled blue-green appearance in cheese production.
A. Penicillium
B. Bacillus
C. A. niger.
D. S. cerevisae.
ANSWER: A
______ is made from Lactococcus lactis.
A. Gruyere
B. Mozzarella
C. Cheddar cheese
D. Parmesan.
ANSWER: C
_______ method is used commercially for the production of baking strains of S. cerevisae.
A. Malting
B. Mashing
C. Skimming
D. Milling
ANSWER: C
_____ is used in bioprocess.
A. Alcohol
B. Alkenes
C. Methanol
D. Ethanol
ANSWER: A
Optimum pH required for the development of yeast is _________.
A. 4 to 6
B. 6 to 7
C. 4 to 5
D. 7 to 8
ANSWER: B
An alternate process for carbonating beer is known as ____ process.
A. Mashing
B. Washing
C. Krausening
D. Milling
ANSWER: C
_____ beer is a heavy beer.
A. Larger
B. Bock
C. Ace
D. Porter
ANSWER: B
Industrial Biotechnology MCQs
___ is extracted from cereal based crops.
A. Bioethanol
B. Biodiesel
C. Petrol
D. Ethanol
ANSWER: B
Biodiesel is produced from ____ oil.
A. Coconut oil.
B. Palm oil.
C. Olive oil.
D. Sesame oil.
ANSWER: B
______ is used as symbiotic nitrogen fixers.
A. Azotobacter
B. Rhizobium
C. Blue green algae
D. Azolla
ANSWER: B
Who discovered Azotobacter?
A. Beijerinek
B. Eli lilly
C. Howard Horey
D. Ernst chain.
ANSWER: A
_______ has an inhibitory relationship with other organisms.
A. Agonist
B. Antagonist
C. Symbiotic
D. none of above
ANSWER: B
Who is called as father of fermentation?
A. Robert Hook
B. Lazaro Spallanzani.
C. Theodar Schwann.
D. Louis Pasteur.
ANSWER: D
________ algae have 70% of hydrocarbons.
A. Botyococcus.
B. Azolla
C. Anabenae
D. Spirillum
ANSWER: B
Who demonstrated biogas?
A. Volta
B. Ghai and Thomas
C. Harberland
D. Potter
ANSWER: A
______ split water by heat.
A. Electrolysis
B. Thermolysis
C. Photolysis
D. Thermochemical lysis
ANSWER: B
______ is a source of hydrogen.
A. Halobacteria
B. Pseudomonas
C. Bacillus
D. Acetobacter
ANSWER: A
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