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.
| 1. |
Which of the following is not a heterosporous genera of pteridophytes ?A. SelaginellaB. IsoetesC. MarsileaD. None of these |
| Answer» Correct Answer - D | |
| 2. |
Antheridium of pteridophytes possess a jacket ofA. 3 cellsB. 4 cellsC. 6 cellsD. 1 cell |
| Answer» Correct Answer - A | |
| 3. |
Actinostele is not present inA. PsilotumB. Lycopodium serratumC. SelaginellaD. Asteroxylon |
| Answer» Correct Answer - B | |
| 4. |
Antherozoids of Dryopteris areA. non-flagellatedB. spirally - coiledC. minuteD. irregularly coiled |
| Answer» Correct Answer - B | |
| 5. |
Antherozoids of Dryopteris areA. multiciliated and coiledB. multiciliated and sickle- shapedC. biciliated and coiledD. biciliated and sickle- shaped |
| Answer» Correct Answer - A | |
| 6. |
Gametophyte of pteridophyte isA. short-lived, free - living and sexual organ bearingB. heart-shaped, dependent on sporophyte and sex-organ bearingC. fibre-like and dependent on sporophyteD. semiparasite on sporophyte |
| Answer» Correct Answer - D | |
| 7. |
Evolution of seed habit first started inA. thalloid bryophytesB. Psilotum like ancestral pteridophytesC. gymnospermsD. mosses |
| Answer» Correct Answer - B | |
| 8. |
Seed habit is linked toA. homosporyB. heterosporyC. parthenogenesisD. parthenocarpy |
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Answer» Correct Answer - B Some of the pteridophyte produce smaller spores called microspore and larger one called magaspore. This nature is called heterospory. In angiosperms there is only one functional megaspore. The male and female gametes fuse to form zygote, which eventually develops into embryo. The embryo forms the seed. |
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| 9. |
The gametophyte of pteridophyte grows in damp, moist and shady places becauseA. they are limited and restricted to a narrow geographical regionB. they need water for fertilisation of gametesC. water is required for gamete formationD. egg cell swims in water to reach to the antheridia |
| Answer» Correct Answer - B | |
| 10. |
Selaginella a pteridophyte shows some advances towards the seed habit. Consider the following statement. I. Development and retention of embryo inside megasporangium. II. Homospory. III. Formation of serveral megaspores within a megasporangium . IV. Enhancement in the size of male gametophyte. Choose the incorrect statements with regard to prerequisites for seed habit .A. I and IIIB. I and IVC. II, III and IVD. None of these |
| Answer» Correct Answer - C | |
| 11. |
The leaves bearing sporangia are calledA. sporophyticB. annulusC. sporophyllsD. stomium |
| Answer» Correct Answer - C | |
| 12. |
The sporangia of Selaginella are aggregated inA. atrobilusB. gametophyteC. prothallusD. None of these |
| Answer» Correct Answer - A | |
| 13. |
Which of the following is true for the bryophytes ?A. It is the only plant group that shows an alteration of generationB. Bryophytes exhibit extensive vascular tissueC. The sporophyte (multicellular diploid) is the dominant stageD. The gametophte (multicellular haploid ) is the dominant stage |
| Answer» Correct Answer - D | |
| 14. |
How are gametes produced in broducing gametophytes?A. By mitosis of gametophyte cellsB. By meiosis of gametophyte cellsC. By meiosis of sporophyte cellsD. By mitosis of spores |
| Answer» Correct Answer - C | |
| 15. |
Bryophytes are not tall plants due toA. absence of meristemB. absence of vascular tissuesC. presence of root systemD. All of these |
| Answer» Correct Answer - B | |
| 16. |
In bryophytes gametophyte is formed byA. sporophyte give rise to gametophyteB. zygote produces gametophyte on germinationC. spores give rise to gametophytic generationD. formed by vascular tissue |
| Answer» Correct Answer - C | |
| 17. |
Which of the following is responsible for peat formation?A. MarchantiaB. RicciaC. FunariaD. Sphagmum |
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Answer» Correct Answer - D Peat is mainly an accumlation of partially decayed vegetation or organic matter and Sphagnum. This accumulation can store water , since both its living and dead constituents can hold large quantities of water and living matter ( like meat and eggs ) for long distnace transport inside their cells. Hence, it is responsible for peat formation. |
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| 18. |
Bryophytes areA. archegoniatae, trachcophytic , embryophyticB. archegoniatae, tracheophytic , non - embryophyticC. archegoniatae, atracheophytic, embryophyticD. non - archegoniatae, atracheophytic, embryophytic. |
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Answer» Correct Answer - C Bryophytes are archegoniate ( female gametophyte) tracheophytic ( absence of vascular elements ) and embryophytic . Bryophytes are small non- vascular plants. They are herbaceous plants that grow closely packed together in mats or cushions on rocks and soil , e.g. ferns, mosses, etc. They have life cycle with alternation of generations.The life cycle goes through boht gametophytic ( haploid ) and sporophytic ( diploid) stage. |
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| 19. |
Choose the correct statements.A. bryophytes can live in soil, but are dependent on water for sexual reprodiuctionB. the sex organs in bryophytes are unicellularC. in bryophyte the main plant body is a gametophyte, which is differentiated into true root, stem and leavesD. common example of liverwort is Polytrichum |
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Answer» Correct Answer - A Bryophytes are characterised by the presence of an independent gametophyte and parasitic sporophyte. Out of the statement given for the bryophytes, the only correct statement given for the bryophytes, the only correct statement is that they can live in soil, but are dependent on water for sexual reproduction. Thus, are called amphibians of plant kingdom. |
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| 20. |
Which one of the following is the group of vascular plants ?A. ThallophytaB. BryophytaC. PteridophytaD. Spermatophyta |
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Answer» Correct Answer - C Pteridophytes are the most primitive vascular plants on earth and are known as vascular crypotogams. They were the first vascular plants to grow and began their life period from leafless or rootless individuals. They played an important part in establishment of the early land flora as they emerged shortly after the evolution of land plants and are much larger than Bryophyta ( which are non- vascular plants). |
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| 21. |
Which of the following in not common to all phyla of vascular plants ?A. The development of seedsB. Alternation of generationC. Dominance of sporophytic generationD. Presence of roots |
| Answer» Correct Answer - A | |
| 22. |
Which one of the following is lacking in Cycas?A. a well-organised flowerB. circinate vernationC. scale and foliage like leavesD. roots with blue-green algae |
| Answer» Correct Answer - A | |
| 23. |
Microsporophll of Cycas isA. flatB. wedge-shapedC. triagularD. All of these |
| Answer» Correct Answer - D | |
| 24. |
Endosperm of flowering plants isA. 3nB. 2nC. 4nD. n |
| Answer» Correct Answer - A | |
| 25. |
The first cell of male gametophytic generation in Cycas isA. microsporeB. megasporeC. antherozoidD. microsporangia |
| Answer» Correct Answer - A | |
| 26. |
Male gametes of Cycas areA. small, biciliate and circularB. small, uniciliate and circularC. large, biciliate and reniformD. large, multiciliated and top-shaped |
| Answer» Correct Answer - C | |
| 27. |
The wood in Cycas consists ofA. tracheids onlyB. vessels onlyC. both equalD. companion cell |
| Answer» Correct Answer - A | |
| 28. |
The ovules of angiosperms are enclosed inside theA. fruitB. sporophyteC. ovaryD. pollen grains |
| Answer» Correct Answer - C | |
| 29. |
The xylem of angiosperms consists ofA. tracheids onlyB. companion cellsC. vessel onlyD. both tracheids and vessels |
| Answer» Correct Answer - D | |
| 30. |
Number of integuments in Cycas isA. oneB. twoC. threeD. four |
| Answer» Correct Answer - A | |
| 31. |
How many prothalial cells are present in the microspore of Cycas, when it is ready to shed ?A. OneB. TwoC. ThreeD. Four |
| Answer» Correct Answer - A | |
| 32. |
Microspores of Pinus are shed at:A. 3-cell stageB. 2-cell stageC. 1-cell stageD. 4-cell stage |
| Answer» Correct Answer - D | |
| 33. |
A drug called ephedrin, used in respiratory ailments is extracted fromA. PinusB. CedrusC. Abies balsamaD. Ephedra |
| Answer» Correct Answer - D | |
| 34. |
The roots of angiosperms develop fromA. radicleB. plumuleC. cotyledonD. All of these |
| Answer» Correct Answer - A | |
| 35. |
Monocots appeared on earth inA. Jurassic periodB. Mesozoic eraC. Triassic periodD. Cambrian period |
| Answer» Correct Answer - B | |
| 36. |
Monocots have been grouped inA. 7 seriesB. 8 seriesC. 14 seriesD. 21 series |
| Answer» Correct Answer - A | |
| 37. |
Which of the following is monocotyledon ?A. TriticumB. OryzaC. AlliumD. All of these |
| Answer» Correct Answer - D | |
| 38. |
Which characteristic is a similarity between gymnosperms and angiosperms ?A. Phloem compositionB. FlowerC. FruitsD. Leaves, stem and roots |
| Answer» Correct Answer - D | |
| 39. |
Which character is common between the angiosperms and gymnosperms ?A. Presence of vesselsB. Presence of companion cellsC. Nature of endospermD. Siphonogamous fertilisation |
| Answer» Correct Answer - D | |
| 40. |
Gymnosperms and angiosperms show resemblances in many characteristics exceptA. secondary growthB. type of woodC. differentiation of plant bodyD. seed formation |
| Answer» Correct Answer - D | |
| 41. |
Phloem in gymnosperms lacks :A. companion cellsB. sieve tubesC. sclerenchymaD. All of these |
| Answer» Correct Answer - A | |
| 42. |
In bryophyta, simplest sporophyte occur in :-A. RicciaB. MarchantiaC. FunariaD. Anthoceros |
| Answer» Correct Answer - A | |
| 43. |
Structures for dispersal of spores in bryophyta are :-A. elatersB. pseudoelatersC. peristomeal teethD. All of these |
| Answer» Correct Answer - D | |
| 44. |
Fem spores are usuallyA. haploidB. diploidC. triploidD. tetraploid |
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Answer» Correct Answer - A In pteridophyte, spore is a haploid structure. |
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| 45. |
Which one of following is not a characteristic of members of kingdom - Plantae ?A. Presence of chlorophyllB. Presence of cellulosic cell wallC. Alternation of generationD. None of the above |
| Answer» Correct Answer - D | |
| 46. |
Mosscs are ecologically important because I. first organism to colonize bare rocks. II. Decompose rocks making suitable for growth of higher plant. III. Form dense mats on soil. IV. Reduce impact of falling rain and soil erosion.A. Only IB. Only IIC. III and IID. All of these |
| Answer» Correct Answer - D | |
| 47. |
The body of bryophytes remain fixed to the substratum by means ofA. scalesB. rhizoldsC. gemmaeD. Both (a) and (b) |
| Answer» Correct Answer - B | |
| 48. |
Who among the following is known as father of Bryology ?A. Rober BraunB. HedwigC. MOP lyengerD. None of the these |
| Answer» Correct Answer - B | |
| 49. |
Cephaleuros virescens is parasitic onA. teaB. coffeeC. wheatD. potato |
| Answer» Correct Answer - A | |
| 50. |
Which of the following is an algal parasite ?A. VolvoxB. UlothrixC. PorphyraD. Cephaleuros |
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Answer» Correct Answer - D Cephaleuros is a green parasitic alga, which causes red rust of tea and coffee. Volvox, Ulthrix and Porphyra are some autotrophic algae. |
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