#11 Biology Class 12 Chapter 11 - Enhancement of Food Production MHTCET / NEET MCQ
11. Enhancement of Food Production MCQ
(1) Antibiotic Chloromycetin is obtained from ……… .
(a) Streptomyces erythreus
(b) Penicillium chrysogenum
(c) Streptomyces venezuelae
(d) Streptomyces griseus
Answer
(c) Streptomyces venezuelae
(2) Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called ……… .
(a) primary treatment
(b) secondary treatment
(c) final treatment
(d) amplification
Answer
(a) primary treatment
(3) Which one of the following is free living bacterial biofertilizer ?
(a) Azotobacter
(b) Rhizobium
(c) Nostoc
(d) Bacillus thuringiensis
Answer
(a) Azotobacter
(4) Most commonly used substrate for industrial production of beer is ……… .
(a) barley
(b) wheat
(c) corn
(d) sugar cane molasses
Answer
(a) barley
(5) Ethanol is commercially produced through a particular species of ……… .
(a) Aspergillus
(b) Saccharomyces
(c) Clostridium
(d) Trichoderma
Answer
(b) Saccharomyces
(6) One of the free-living anaerobic nitrogenfixers is ……… .
(a) Azotobacter
(b) Beijerinckia
(c) Rhodospirillum
(d) Rhizobium
Answer
(c) Rhodospirillum
(7) M icroorganisms also help in production of food like ……… .
(a) bread
(b) alcoholic beverages
(c) vegetables
(d) pulses
Answer
(a) bread
(8) MOET technique is used for ……… .
(a) production of hybrids
(b) inbreeding
(c) outbreeding
(d) outcrossing
Answer
(a) production of hybrids
(9) Mule is the outcome of ……… .
(a) inbreeding
(b) artificial insemination
(c) interspecific hybridization
(d) outbreeding
Answer
(c) interspecific hybridization
(10) Means of in situ germplasm conservation are ……… .
(a) forests
(b) Natural Reserves
(c) botanical gardens, seed banks
(d) both (a) and (b)
Answer
(d) both (a) and (b)
(11) Means of ex situ germplasm conservation are ……… .
(a) forests and seed banks
(b) natural Reserves
(c) botanical gardens, seed banks
(d) botanical garden and forests
Answer
(c) botanical gardens, seed banks
(12) Germplasm includes ……… .
(a) only improved varieties of crop
(b) all cultivated varieties and wild relatives of a particular crop
(c) all hybridized varieties only
(d) only mutant varieties of a crop
Answer
(b) all cultivated varieties and wild relatives of a particular crop
(13) Taichung Native-1 is a variety of rice from ……… .
(a) China
(b) Korea
(c) Malaysia
(d) Taiwan
Answer
(d) Taiwan
(14) Which of the following is not a fungal disease ?
(a) Late blight of potato
(b) Brown rust of wheat
(c) Red rot of sugar cane
(d) Black rot of crucifers
Answer
(d) Black rot of crucifer
(15) ……… variety of wheat is resistant to Hill bunt disease.
(a) Himgiri
(b) Pusa swarnim
(c) Kalyan sona
(d) Pusa A-4
Answer
(a) Himgiri
(16) Regina-II variety of ……… is resistant to bacterial rot.
(a) wheat
(b) cabbage
(c) cauliflower
(d) Brassica
Answer
(b) cabbage
(17) The nectar-less cotton having smooth leaves has resistance against ……… .
(a) bollworms
(b) jassids
(c) aphids
(d) stem borers
Answer
(a) bollworms
(18) ……… gave concept of in vitro cell culture.
(a) Haberlandt
(b) Frank
(c) Yabuta and Sumiki
(d) None of these
Answer
(a) Haberlandt
(19) Tissue culture requirements are ……… .
(a) pH of nutrient medium 5 to 5.8
(b) Sterilized glassware, nutrient medium, explants, inoculation chamber
(c) Temperature 18 °C to 20 °C
(d) All of these
Answer
(d) All of these
(20) Hybrid maize with double the quantity of amino acids ……… have been developed.
(a) lysine and tryptophan
(b) alanine and aspartic acid
(c) glutamic and proline
(d) histidine and cystine
Answer
(a) lysine and tryptophan
(21) Inbreeding increases ……… .
(a) homozygosity
(b) heterozygosity
(c) heterosis
(d) hemizygosity
Answer
(a) homozygosity
(22) Which hormone is used for MOET method ?
(a) GH
(b) LH
(c) FSH
(d) ICSH
Answer
(c) FSH
(23) Find the odd one out.
(a) Sahiwal
(b) Sindhi
(c) Gir
(d) Holstein
Answer
(d) Holstein
(24) Pullorum is a ……… disease.
(a) viral
(b) bacterial
(c) fungal
(d) parasitic
Answer
(b) bacterial
(25) Propolis is ……… .
(a) bee glu
(b) royal jelly
(c) bee venom
(d) none of these
Answer
(a) bee glu
(26) Select the incorrect pair.
(a) Apis dorsata – Rock bee
(b) Apis indica –Indian bee
(c) Apis florae – Little bee
(d) Apis mellifera – Wild bee
Answer
(d) Apis mellifera – Wild bee
(27) ……… fishery takes place in Sundarban area of ……… .
(a) Estuarine, West Bengal
(b) Marine, Odisha
(c) Fresh water, West Bengal
(d) None of these
Answer
(a) Estuarine, West Bengal
(28) Which stage in the life cycle of silk moth secretes silk ?
(a) Caterpillar
(b) Egg
(c) Pupa
(d) Adult
Answer
(a) Caterpillar
(29) Lac insect is a native of ……… .
(a) China
(b) India
(c) Africa
(d) Europe
Answer
(b) India
(30) A lcoholic fermentation is brought about by ……… .
(a) Lactobacillus
(b) Saccharomyces
(c) Trichoderma
(d) Streptomyces
Answer
(b) Saccharomyces
(31) ……… and ……… are alcoholic beverages produced without distillation.
(a) Wine, rum
(b) Wine, beer
(c) Whisky, brandy
(d) Brandy, beer
Answer
(b) Wine, beer
(32) Organic acid can be produced directly from glucose or formed as end products from ……… .
(a) pyruvate
(b) ethanol
(c) gluconic acid
(d) both (a) and (b)
Answer
(d) both (a) and (b)
(33) The microbial source of vinegar is ……… .
(a) Aspergillus niger
(b) Rhizopus arrhizus
(c) Acetobacter aceti
(d) Streptomyces venezuelae
Answer
(c) Acetobacter aceti
(34) Statins are produced by ……… .
(a) Monascus purpureus
(b) Streptococcus
(c) Aspergillus niger
(d) None of these
Answer
(a) Monascus purpureus
(35) ……… is used as a ‘clot buster’.
(a) Pectinase
(b) Statin
(c) Invertase
(d) Streptokinase
Answer
(d) Streptokinase
(36) Aspergillus niger is used to manufacture ……… .
(a) pectinase, gluconic acid and vitamin C
(b) pectinase, gluconic acid and vitamin B12
(c) invertase, acetic acid and vitamin C
(d) pectinase, citric acid and invertase
Answer
(a) pectinase, gluconic acid and vitamin C
(37) The first Gibberellin was isolated by ………
(a) Frank
(b) Skoog
(c) Yabuta and Sumiki
(d) None of these
Answer
(c) Yabuta and Sumiki
(38) Once the BOD of waste water is reduced, it is passed into a ……… .
(a) settling tank
(b) primary sedimentation tank
(c) anaerobic sludge digesters
(d) aeration tank
Answer
(a) settling tank
(39) During biogas production species used to bring about hydrolysis or solubilization is ………
(a) Pseudomonas
(b) Rhizopus
(c) Methanococcus
(d) Methanobacillus
Answer
(a) Pseudomonas
(40) ……… bacteria are used as herbicides.
(a) Pseudomonas spp., Xanthomonas spp., Agrobacterium spp.
(b) Bacillus thuringiensis, B. papilliae, B. lentimorbus
(c) Pseudomonas spp., Bacillus thuringiensis, B. papilliae
(d) Xanthomonas spp., Agrobacterium spp., Bacillus thuringiensis
Answer
(a) Pseudomonas spp., Xanthomonas spp., Agrobacterium spp
(41) The weed Senecio jacobeac is controlled by ……… .
(a) Cactoblastis cactorum
(b) Xanthomonas spp
(c) Bacillus thuringiensis
(d) tyrea moth
Answer
(d) tyrea moth
(42) Nosema locustae is ……… pathogen.
(a) bacteria
(b) fungal
(c) protozoan
(d) viral
Answer
(c) protozoan
(43) Which of the following bacterial pathogen is not used as herbicide ?
(a) Pseudomonas
(b) Xanthomonas
(c) Agrobacterium
(d) Azotobacter
Answer
(d) Azotobacter
(44) Identify free living bacterial biofertlizer ………
(a) Rhizobium
(b) Azotobacter
(c) Nostoc
(d) Bacillus thuringiensis
Answer
(b) Azotobacter
(45) The ectomycorrhizae form ……… on the root surface.
(a) root tuber
(b) mantle
(c) root hair
(d) arbuscles
Answer
(b) mantle
