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.
| 601. |
Coralloid roots have a symbiotic association withA. Photosynthetic green algaeB. `N_(2)` - fixing cyanobacteriaC. FungusD. Photosynthetic brown algae |
| Answer» Correct Answer - B | |
| 602. |
The cones bearing microsporophylls are know asA. Male strobiliB. MacrosporangiateC. Female strobiliD. Both (2) & (3) |
| Answer» Correct Answer - A | |
| 603. |
Bryophytes are exceptional, asA. They produce sporesB. Their sporophytic stage grows on gametophyteC. They do not require water for fertillizationD. Their gametophyte stage grows on sporophyte |
| Answer» Correct Answer - B | |
| 604. |
Dominant generation in bryophtes isA. CapsuleB. SporophyteC. GametophyteD. Seta |
| Answer» Correct Answer - C | |
| 605. |
Leptoids and hydroids are the vascular supply ofA. HornwortsB. Irish mossesC. LiverwortsD. Pteridophytes |
| Answer» Correct Answer - C | |
| 606. |
Which of the following plants has high water retention capacity and is used to provide moisture to plants?A. SphagnumB. BotrychilumC. MarsileaD. Marchantia |
| Answer» Correct Answer - A | |
| 607. |
Match the columns I and II, and choose the correct combination from the options given `{:(,"Column-I",,"Column-II"),("(a)","Algae","(p)","Gymnosperm"),("(b)","Riccia","(q)","Pond scum"),("(c)","Spirogyra","(r)","Autotrophic"),("(d)","Gnetum","(s)","Liverwort"):}`A. a-(r),b-(s),c-(q),d-(p)B. a-(p),b-(s),c-(q),d-(r)C. a-(s),b-(p),c-(r),d-(q)D. a-(r),b-(q),c-(s),d-(p) |
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Answer» Correct Answer - A `{:("Algae","Autotrophic"),("Riccia","Liverwort"),("Spirogyra","Pond scum"),("Gnetum","Gymnosperm"):}` |
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| 608. |
What is heterospory? Briefly comment on its significance. Give two examples. |
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Answer» Heterospery. Heterospory is the production of two different kinds of spores, i.e., male microspores and female megaspores in two separate sporangia, i.e., microsporangia and megasporangia. Significance of heterospory. Heterospory is the first step towards seed habit. Examples : Selaginella and Marsilea. |
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| 609. |
Common charactristic between bryophytes and pteridophytes isA. VascularisationB. Terrestrial habitC. Water for fertilizationD. Independent sporophyte |
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Answer» Correct Answer - c Require water for fertilization as their sperms are motile. |
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| 610. |
A phylogenetic tree or evolutionary tree is a branching diagram shown the inferred evolutionary relationships among various biological species. Which of the following phylogenies is correctly represented?A. B. C. D. |
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Answer» Correct Answer - A A phylogenetic/evolutionary tree is a branching diagram showing the inferred evolutionary relationships among various biological species based upon similariteis and differences in their morphological or genetical characteristics. To have descended from a common ancestor. |
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| 611. |
Why is presence of water a must for fertilization in pteridophytes ? |
| Answer» The sex organs of pteridophytes are antheridia. The antheridia produce male gametes which are flagellated antherozoids. They are liberated in water and swim to reach the archegonia. The female sexorgans - i.e., archegonia possess non-motile egg. Thus, fertilization can occur only when water is present in the surrounding medium. | |
| 612. |
Select the optio that correctly identifies A. `{:(A,B),("Sporophyte","Gametophyte"):}`B. `{:(A,B),("Gametophyte","Sporophyte"):}`C. `{:(A,B),("Male shoot","Female shoot"):}`D. `{:(A,B),("Female shoot","male shoot"):}` |
| Answer» Correct Answer - A | |
| 613. |
Find the correct match which identifies these diagrams A. `{:(A,B,C,D),("Chara","Sphagnum","Salvinia","Ginkgo"):}`B. `{:(A,B,C,D),("Ginkgo","Chara","Sphagnum","Salvinia"):}`C. `{:(A,B,C,D),("Sphagnum","Ginkgo","Chara","Salvinia"):}`D. `{:(A,B,C,D),("Ginkgo","Sphagnum","Salvinia","Chara"):}` |
| Answer» Correct Answer - D | |
| 614. |
Which one is the most advanced from evolutionary view pointA. SelaginellaB. FunariaC. ChlamydomonasD. Pinus |
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Answer» Correct Answer - D (d) From the evolutionary point of view, the given optionns can be arranged as Chlamydomonas, Funaria, Selaginella, and Pinus. Pinus, i.e. gymnosperms are the most evolved seed bearing pharierogamic vascular sporophytic plants, after angiosperms (most advanced group of plants). Pteridophytes (e.g. Selaginella) are spore bearing non-seeded vascular cryptogams. Algae, bryophytes and pteridophytes resemble each other in dependence on water for fertilisation. |
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| 615. |
Chloroplasts are found in the spores ofA. RhizopusB. FunariaC. YeastD. Dryopteris |
| Answer» Correct Answer - B | |
| 616. |
Stomata having pores bounded by a single ring-shaped guard cell are found inA. Capsule of FunariaB. Leaf of fernC. Pinnule of CycasD. All of these |
| Answer» Correct Answer - A | |
| 617. |
Chloroplasts are present in the spores ofA. RhizopusB. FunariaC. YeastD. Dryopteris |
| Answer» Correct Answer - B | |
| 618. |
Which of the following is a vascular cryptogamA. MarchanriaB. CedrusC. EquisetumD. Ginkgo |
| Answer» Correct Answer - C | |
| 619. |
Protonema occurs in the life cycle ofA. RicciaB. FunariaC. ChlamydomonasD. Spirogyra |
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Answer» Correct Answer - B (b) Protonema represents the juvenile stage of moss (Funaria). It is much-branched, green filamentous structure formed by the germination of spores, under favourable conditions. The protonema consists of (a) some slender rhizoids (b) a number of aerial green prostrate branches bearing small lateral buds which grow up into new moss gametophores. |
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| 620. |
In moss capsule, the number of peristome whorls areA. 1B. 2C. 3D. 4 |
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Answer» Correct Answer - b The peristome is distinguihable into two whorls of radially arranged peristomial teeth. |
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| 621. |
Which one of the following is a vascular cryptogram?A. CedrusB. EquisetumC. GinkgoD. Marchantia |
| Answer» Correct Answer - B | |
| 622. |
Moss peristome takes part inA. spore dispersalB. photosynthesisC. protectionD. absorption |
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Answer» Correct Answer - A (a) Peristome functions in the dispersal of the spores. Peristome constitutes rings of teeth like projections at he rim of thhe capsule of the mosses. In Funaria, peristome are 32 in number, arragned in two rings of 16 each (a) outer exostome and (b) inner endostome. |
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| 623. |
Venation in fem leaves isA. UnicostateB. ReticulateC. FurcateD. Parallel |
| Answer» Correct Answer - C | |
| 624. |
If the number of chromosome in the foot of an embryo is 8. what should be the number in its spore?A. 4B. 8C. 16D. 23 |
| Answer» Correct Answer - A | |
| 625. |
Maiden Hair Fern isA. DryopterisB. PterisC. AdiantumD. Lycopodium |
| Answer» Correct Answer - C | |
| 626. |
Maiden Hair Fern isA. AdiantumB. DryopterisC. CyathaeaD. Alsophila |
| Answer» Correct Answer - A | |
| 627. |
Match the following with correct combination. A. (a) `rarr` (vi), (b) `rarr` (v), (c) `rarr` (i), (d) `rarr` (iii), (e) `rarr` (iv)B. (a) `rarr` (v), (b) `rarr` (iv), (c) `rarr` (iii), (d) `rarr` (ii), (e) `rarr` (i)C. (a) `rarr` (v), (b) `rarr` (i), (c) `rarr` (ii), (d) `rarr` (iv), (e) `rarr` (iii)D. (a) `rarr` (iii), (b) `rarr` (ii), (c) `rarr` (i), (d) `rarr` (v), (e) `rarr` (iv) |
| Answer» Correct Answer - C | |
| 628. |
Walking fem belongs to the genusA. AdiantumB. DryopterisC. PterisD. Marsilea |
| Answer» Correct Answer - A | |
| 629. |
Chloroplast in Ulothrix isA. ReticulateB. CuplikeC. SpiralD. Girdle shaped |
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Answer» Correct Answer - d Chloroplast in Ulothrix is girdle or ring shaped (U.zonata) or collar shaped. |
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| 630. |
Heterothallism refers toA. Fusion is not accompanied with zygote formationB. Fusion between morphologically similar strainC. Fusion between the strains of structurally similar and physiologically differentD. All the above |
| Answer» Correct Answer - c | |
| 631. |
An alga which can be employed as food for humna being isA. polysiphoniaB. UlothrixC. ChlorellaD. Spirogyra |
| Answer» Correct Answer - C | |
| 632. |
Assertion: Thallophytes are non-vascular, non-archegoniate, and non-cormophytic plants. Reason: Thallophytes lack vascular bundles, archegonia, and differentiated plant body.A. If the Assertion & Reason are true and the reason is the correct. Explanation of the assertion.B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.C. If Assertion is true statement but Reason is false.D. If both Assertion and Reason are false statements. |
| Answer» Correct Answer - A | |
| 633. |
An alga which can be employed as food for humna being isA. ChlorellaB. SpirogyraC. OscillatoriaD. Ulothrix |
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Answer» Correct Answer - a Chlorella vugaris: This is the source of protein. This is rounded unicellular algae related to class chlorophyceae. |
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| 634. |
Which one of the following shows isogamy with non-flagellated gametes ?A. SpirogyraB. SargassumC. EctocarpusD. Ulothrix |
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Answer» Correct Answer - A Spirogyra shows isogamy with non-flagellated gametes. |
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| 635. |
The given figure shows a/anA. Adiantum plantB. Dryopteris plantC. Selaginella leafD. Psilotum leaf. |
| Answer» Correct Answer - B | |
| 636. |
Match column I with column II and select the correct option from the codes given below `{:("Column I","Column II"),(A." Psilopsida",(i)." Psilotum"),(B." Lycopsida",(ii)." Equisetum"),(C." Sphenopsida",(iii)." Selaginella"),(D." Pteropsida",(iv)." Dryopteris"):}`A. A-I,B-ii,C-iii,D-ivB. A-I,B-iv,C-iii,D-iiC. A-I,B-iii,C-ii,D-ivD. A-I,B-iii,C-iv,D-ii |
| Answer» Correct Answer - C | |
| 637. |
Match List I with List II and pick up the correct choice from the under assigned codes A. `{:(a,b,c,d),(IV,II,V,I):}`B. `{:(a,b,c,d),(III,II,I,V):}`C. `{:(a,b,c,d),(IV,II,I,III):}`D. `{:(a,b,c,d),(III,IV,I,V):}` |
| Answer» Correct Answer - B | |
| 638. |
A liver wort isA. a parasite causing infection of liverB. a kind of virus infecting the liverC. a flowering plant for treating liver disordersD. a plant without differentiation into roots, stem and leaves. |
| Answer» Correct Answer - D | |
| 639. |
Which one is a wrong statement?A. Brown algae have chlorophyll a and c , and fucoxanthinB. Archegonia are found in Bryophyta , Pteridophyta and GymnospermsC. Mucor has biflagellate zoospooresD. Haploid endosperm is typical feature of gymnosperms |
| Answer» Correct Answer - C | |
| 640. |
Select the correct statementA. The leaves of gymnosperms are not well adapted to extremes of climateB. Gymnosperms are both homosporous and heterosporousC. Salvinia , Ginkgo and Pinus all are gymnospermsD. Sequoia is one of the tallest trees |
| Answer» Correct Answer - D | |
| 641. |
Which one of the following statements is wrong?A. Algae increase the level of dissolved oxygen in the immediate environmentB. Algin is obtained from red algae and carrageenan from brown algaeC. Agar-agar is obtained from Gelidium and GracilariaD. Laminaria and Saragassum are used as food |
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Answer» Correct Answer - B (b) Algin extracted from brown algae, e.g. Laminaria, etc. is a hydrocolloid used in shaving creams, jellies, flameproof plastic, etc. Carrageenan is extracted from red algae like Chondrus and used as emulsifier and clearing agent. Thus, only option (b) is incorrect and all other options are correct. |
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| 642. |
Match Column-I with Column-II and select the correct option using the codes given below `{:(,"Column-I",,"Column-II"),("(A)","Pistils fused together","(i)","Gametogenesis"),("(B)","Formation of gametes","(ii)","Pistillate"),("(C)","Hyphae of higher Ascomycetes","(iii)","Syncarpous"),("(D)","Unisexual female flower","(iv)","Dikaryotic"):}`A. `{:("a","b","c","d"),("i","ii","iv","iii"):}`B. `{:("a","b","c","d"),("iii","i","iv","ii"):}`C. `{:("a","b","c","d"),("iv","iii","i","ii"):}`D. `{:("a","b","c","d"),("ii","i","iv","iii"):}` |
| Answer» Correct Answer - B | |
| 643. |
Select the correct statement.A. Salvinia, Ginkgo and Pinus all are gymnospermsB. Sequoia is one of the tallest treesC. The leaves of gymnosperms are not well adapted to extremes of climateD. Gymnosperms are both homosporous and heterosporous |
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Answer» Correct Answer - B (b) Sequoia is one of the tallest tree species, known as red wood tree. It is a gymnospermic plant. Salvinia is an angiosperm, but Ginkgo and Pinus are gymnosperms. Gymnosperms are well adapted to extremes of climate and are heterosporous. |
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| 644. |
Which one of the following statements is wrong ?A. Algae increase the level of dissolved oxygen in the immediate environmentB. Algin is obtained from red algae , and carrageenan from brown algaeC. Agar - agar is obtained from Gelidium and GracilariaD. Leminaria and Sargassum are used as food |
| Answer» Correct Answer - B | |
| 645. |
Identify the labels A , B , C , and D in the figure given below A. A - Sporophyte , B - Meiosis C - Gametogenesis , D - EndospermB. A - Sporophyte , B - Mitosis C - Gametogenesis , D - ZygoteC. A - Gametophyte , B - Meiosis C - Gametogenesis , D - ZygoteD. A - Sporophyte , B - Meiosis C - Gametogenesis , D - Zygote |
| Answer» Correct Answer - D | |
| 646. |
Which character is found in gymnosperms?A. AnnualsB. HerbaceousC. Climber and trailing shrubD. Ovary |
| Answer» Correct Answer - C | |
| 647. |
Mark the correct statement for the organism given below in figure . A. The structure labelled A is male coneB. It is member of sphenopsidaC. Nodes are hollow while internodes are solidD. This is commonly called as stonewort |
| Answer» Correct Answer - B | |
| 648. |
Endospermic, perispermic, polycotyledonous, and winged seeds having member of plantae also showA. Sulfur showerB. Largest ovuleC. Double fertilizationD. Placentation |
| Answer» Correct Answer - A | |
| 649. |
Endospermic, perispermic, polycotyledonous, and winged seeds having member of plantae also showA. Sulphur showerB. Largest ovuleC. Double fertilizationD. Placentation |
| Answer» Correct Answer - A | |
| 650. |
Which one constitutes the dominant vegetation in colder regions?A. DicotsB. GymnospermsC. MonocotsD. Tracheophytes |
| Answer» Correct Answer - B | |