The Living World PYQs Set 2 (PDF)

Set 2 of 7 · Questions 31-60 of 197

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Mere Teacher · Previous Year Questions NEET Biology · The Living World · Set 2 (Q31-60)
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31. $Life cycle of Ectocarpus and Fucus respectively are:$ (1) $Diplontic, Haplodiplontic$ (2) $Haplodiplontic, Diplontic$ (3) $Haplodiplontic, Haplontic$ (4) $Haplontic, Diplontic$ 32. $An alga which can be employed as food for human being is :-$ (1) $Ulothrix$ (2) $Chlorella$ (3) $Spirogyra$ (4) $Polysiphonia$ 33. $Pigment-containing membranous extensions in some cyanobacteria are :$ (1) $Chromatophores$ (2) $Heterocysts$ (3) $Basal bodies$ (4) $Pneumatophores$ 34. $Which one of the following has haplontic life cycle:-$ (1) $Wheat$ (2) $Funaria$ (3) $Polytrichum$ (4) $Ustilago$ 35. $Which one of the following is not a biofertilizer?$ (1) $Agrobacterium$ (2) $Rhizobium$ (3) $Nostoc$ (4) $Mycorrhiza$ 36. $Which of the following represents maximum number of species among global biodiversity?$ (1) $Mosses and Ferns$ (2) $Algae$ (3) $Lichens$ (4) $Fungi$ 37. $The contrasting characteristics generally in a pair used for identification of animals in taxonomic key are referred to as :$ (1) $Lead$ (2) $Couplet$ (3) $Doublet$ (4) $Alternate$ 38. $Which one of the following belongs to the family Muscidae?$ (1) $Fire fly$ (2) $Grasshopper$ (3) $Cockroach$ (4) $House fly$ 39. $The structures that help some bacteria to attach to rocks and/or host tissues are :$ (1) $Holdfast$ (2) $Rhizoids$ (3) $Fimbriae$ (4) $Mesosomes$ 40. $Besides paddy fields, cyanobacteria are also found inside vegetative part of :$ (1) $Psilotum$ (2) $Pinus$ (3) $Cycas$ (4) $Equisetum$ 41. $The ovule of an angiosperm is technically equivalent to :$ (1) $megaspore mother cell$ (2) $megaspore$ (3) $megasporangium$ (4) $megasporophyll$ 42. $The pathogen Microsporum responsible for ringworm disease in humans belongs to the same Kingdom of organisms as that of :$ (1) $Ascaris, a round worm$ (2) $Taenia, a tapeworm$ (3) $Wuchereria, a filarial worm$ (4) $Rhizopus, a mould$ 43. $Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom :-$ (1) $Monera$ (2) $Protista$ (3) $Fungi$ (4) $Animalia$ 44. $Which of the following statements is incorrect about gymnosperms?$ (1) $They are heterosporous$ (2) $Male and female gametophytes are free living$ (3) $Most of them have narrow leaves with thick cuticle$ (4) $Their seeds are not covered$ 45. $Match List - I with List - II List - I (A) Puccinia (B) Neurospora (C) Saprophytes (D) Albugo List - II (I) Parasitic fungus on mustard (II) Dead substrates (III) Wheat rust (IV) Biochemical and Genetic work Choose the correct answer from the options given below :$ (1) $(A)-(III), (B)-(IV), (C)-(II), (D)-(I)$ (2) $(A)-(I), (B)-(II), (C)-(III), (D)-(IV)$ (3) $(A)-(IV), (B)-(II), (C)-(I), (D)-(III)$ (4) $(A)-(III), (B)-(II), (C)-(IV), (D)-(I)$ 46. $Which one of the following is a slime mould?$ (1) $Anabaena$ (2) $Rhizopus$ (3) $Physarum$ (4) $Thiobacillus$ 47. $Evolutionary history of an organism is known as :$ (1) $Paleontology$ (2) $Ontogeny$ (3) $Phylogeny$ (4) $Ancestry$ 48. $Study the four statements (A-D) given below and select the two correct ones out of them : (A) Definition of biological species was given by Ernst Mayr. (B) Photoperiod does not affect reproduction in plants. (C) Binomial nomenclature system was given by R.H. Whittaker. (D) In unicellular organisms, reproduction is synonymous with growth. The two correct statements are$ (1) $A and D$ (2) $A and B$ (3) $B and C$ (4) $C and D$ 49. $Which of the following algae produce Carrageen?$ (1) $Green algae$ (2) $Brown algae$ (3) $Red algae$ (4) $Blue-green algae$ 50. $Mad cow disease in catttle is caused by an organism which has :-$ (1) $inert crystalline structure$ (2) $abnormally folded protein$ (3) $free RNA without protein coat$ (4) $free DNA without protein coat$ 51. $Which of the following organisms are known as chief producers in the oceans?$ (1) $Dinoflagellates$ (2) $Diatoms$ (3) $Cyanobacteria$ (4) $Euglenoids$ 52. $Which of the following is not a correct statement?$ (1) $Herbaria serve as quick referral systems in taxonomical studies.$ (2) $Indian Botanical Garden is situated at Lucknow, India.$ (3) $Museums have collections of preserved plant and animal specimens.$ (4) $The keys are based on the contrasting characters.$ 53. $Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as :$ (1) $Homosorus$ (2) $Heterosorus$ (3) $Homosporous$ (4) $Heterosporous$ 54. $Which one of the following statements is wrong?$ (1) $Cyanobacteria are also called blue green algae$ (2) $Golden algae are also called desmids$ (3) $Eubacteria are also called false bacteria$ (4) $Phycomycetes are also called algal fungi$ 55. $Floridean starch has structure similar to:$ (1) $Laminarin and cellulose$ (2) $Starch and cellulose$ (3) $Amylopectin and glycogen$ (4) $Mannitol and align$ 56. $Which one of the following shows isogamy with non-flagellated gametes?$ (1) $Sargassum$ (2) $Ectocarpus$ (3) $Ulothrix$ (4) $Spirogyra$ 57. $The cyanobacteria are also referred to as :-$ (1) $Slime moulds$ (2) $Blue green algae$ (3) $Protists$ (4) $Golden algae$ 58. $Which of the following statements is incorrect?$ (1) $Viroids lack a protein coat$ (2) $Viruses are obligate parasites$ (3) $Infective constituent in viruses is the protein coat$ (4) $Prions consist of abnormally folded proteins$ 59. $A nitrogen fixing microbe associated with Azolla in rice-fields is :-$ (1) $Frankia$ (2) $Tolypothrix$ (3) $Spirulina$ (4) $Anabaena$ 60. $Match Column-I with Column-II for housefly classification and select the correct option using the codes given below: Column-I (A) Family (B) Order (C) Class (D) Phylum Column-II (I) Diptera (II) Arthropoda (III) Muscidae (IV) Insecta Codes : (A) (B) (C) (D)$ (1) $IV III II I$ (2) $IV II I III$ (3) $III I IV II$ (4) $III II IV I$