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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.
| 701. |
Stomata are not found inA. AlgaeB. MossesC. FermsD. Gymnosperm |
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Answer» Correct Answer - a Stomata are originated with the origin of bryophytes (Amphibian group). Algae are primitive than bryophytes. |
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| 702. |
What is the megasporophyll of a seed plant called ? |
| Answer» Correct Answer - Ovule. | |
| 703. |
What is the megasporophyll bearing ovules of angiosperms called ? |
| Answer» Correct Answer - Carpel. | |
| 704. |
Name a plant which is commonly called "maiden hair fern". |
| Answer» Correct Answer - Adiantum. | |
| 705. |
What is common between a fern leaf and a Cycas leaf. |
| Answer» Circinate ptyxis. | |
| 706. |
The sporophytic phase in Funaria is well developed and is composed ofA. Foot, seta and capsuleB. Spore sacC. Capsule onlyD. Foot and capsule |
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Answer» Correct Answer - a In Funaria fully develped sporophyte (sporangium) is made of three regions i.e., Basal foot, seta and capsule. |
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| 707. |
Coralloids roots of ____have symbiotic association with `N_(2)`- fixing cyanobacteria.A. PinusB. CedrusC. CycasD. Ginkgo |
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Answer» Correct Answer - C The coralloids roots of cycas are symbiotically associated with nitrogen fixing blue-green algae, anabaena cycadae and nostoc punctiforme. In the middle cortex of coralloid roots, a broad blue green zone occurs, which which is known as algal zone. coralloid roots are irregular negatively geotropic, dichotomosouly branched coral like roots which do not possess root hair and root caps. |
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| 708. |
Gymnosperms are different from angiosperms inA. absence of seedsB. absence of ovaryC. absence of ovuleD. absence of sieve cells. |
| Answer» Correct Answer - B | |
| 709. |
Assertion: The bryophytes exist in two phases-gametophyte and sporophyte. Reason: The sporophyte is nutritionly independent.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - c The bryophytes have evolved a life which comprises two phases-gametophyte and sporophytes. The gametophyte (haploid) is concerned with sexual reproduction and constitutes the most conspicous. Nutritionally independent phase in the life cycle. The sprophyte is is dependent partly or wholly on the gametotophyte for nutritional purpose. |
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| 710. |
As compound to the gametophyte of bryophytes, the gametophyte of vascular plants areA. Smaller with larger sex organsB. Larger with smaller sex organsC. Smaller with smaller sex organsD. Larger with larger sex organs |
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Answer» Correct Answer - C As compared to the gametophye of bryophytes, the gametophyte of vascular plants are smaller with smaller sex organs. |
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| 711. |
Similarity between pteridophytes and gymnosperms is inA. SeedB. FruitC. ArchegoniaD. Independent gametophytes |
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Answer» Correct Answer - C Similarity between pteridophyte and gymnosperms is presence of archegonia. |
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| 712. |
Assertion: Antheridhia of Funaria are sunk in pit. Reason: Its antheridial duster is surrounded by perigonial leaves.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - d In Funaria, the antheridia are not sunk in pits, but project from the surface of the receptacle and are aggregated to form a cluster. The leaves surrounding the antheridial cluster are known as the perigonial leaves. The antheridial cluster with the surrounding perigonial leaves is called the perigonium. |
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| 713. |
Reverse food material of algae isA. StarchB. GlycogenC. FatD. Sugar |
| Answer» Correct Answer - a | |
| 714. |
Macrocystis is aA. Red algaeB. FungiC. BryophytaD. Brown algae |
| Answer» Correct Answer - d | |
| 715. |
Chlamydomonas does not occur inA. Fresh waterB. Pond and lakeC. RiverD. Ocean |
| Answer» Correct Answer - d | |
| 716. |
The female sex organ in red algae is flask-shaped and is known asA. TrichogyneB. CarpogoniumC. SpermatiumD. Archegonium |
| Answer» Correct Answer - B | |
| 717. |
Flagella are of equal length and smooth in Chlamydomonas. This condition can be referred to asA. lsokont and pleuronematicB. Heterokont and acronematicC. lsokont and acronematicD. Heterokont and pleuronematic |
| Answer» Correct Answer - C | |
| 718. |
Non-motile male gametes are formed inA. Funaria (Moss)B. SelaginellaC. FernD. Pinus |
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Answer» Correct Answer - d Because pollen tube is present and dispersal of pollen grains by wind. So male gametes are not cillate. |
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| 719. |
Non-motile gametes are characteristically found inA. CyanophytaB. RhodophytaC. PhaeophytaD. Chlorophyta |
| Answer» Correct Answer - B | |
| 720. |
Which of the following statement is correct regarding spermatophyte?A. Gymnosperms are homosporous.B. Microspore which develops into male gametophyte is highly reduced.C. The development of pollen grains occurs in megaspo- rangia.D. The male and female cones are borne on same tree in Cycas. |
| Answer» Correct Answer - B | |
| 721. |
Which of the following are useful for curing goiter?A. Sea kelpsB. DiatomsC. Red algaeD. Porphyra |
| Answer» Correct Answer - A | |
| 722. |
Irish moss belongs toA. MossesB. BryophytesC. Red algaeD. Lichens |
| Answer» Correct Answer - C | |
| 723. |
Classification which is based on evolutionary relationships of various organism isA. ArtificalB. NaturalC. PhylogeneticD. Two kingdom classification |
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Answer» Correct Answer - C Phylogenetic classification is based on evolutionary relationship of various organisms. |
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| 724. |
________classification systems were based on evolutionary relationships between various organisms.A. NaturalB. ArtificialC. PhylogeneticD. both a and b |
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Answer» Correct Answer - C Classification based on evolutionary relationships of organisms is called phylogenetic system of classification. |
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| 725. |
In the classification of plants the term cladistics refers to theA. Phylogenetic classificationB. Sexual classificationC. Artificial classificationD. Natural classification |
| Answer» Correct Answer - A | |
| 726. |
In a moss the sporophyteA. Manufactures food fro itself, as well as for the gametophyte.B. Is partially parasite on the gametophyteC. Produces gametes that give rise to the gametophyteD. Arises from a spore produced from the gametophyte |
| Answer» Correct Answer - B | |
| 727. |
In a moss the sporophyteA. arises from a spore produced from the gametophyteB. manufactures food for itself, as well as for the gametophyteC. is partially parasitic on the gametophyteD. Produces gametes that give rise to the gametophyte |
| Answer» Correct Answer - C | |
| 728. |
In the prothallus of avascular cryptogam, the antherozoids and egs mature at different times, as a resultA. there is no change in success rate of fertilisationB. there is high degree of sterilityC. one can conclude that the plant is apomicticD. self fertilisation is prevented |
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Answer» Correct Answer - D (d) In the prothallus of a vascular cryptogam, thhe antherozoids and eggs mature at different times. As a result self fertilisation is prevented. |
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| 729. |
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?A. Types of pigments present in the cellB. Nature of stored food materials in the cellC. Structural organisation of thallusD. Chemical composition of the cell wall |
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Answer» Correct Answer - A (a) Type of pigments present in the cell of algae is the most important character for classification. |
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| 730. |
In a moss the sporophyteA. Manufactures food for itself as well as for the gametophyteB. Is partially parasitic on the gametophyteC. Produces gametes that give rise to the gametophyteD. Arises from a spore produced from the gametophyte |
| Answer» Correct Answer - B | |
| 731. |
Spore dissemination in some liverworts is aided byA. elatersB. indusiumC. calyptraD. peristome teeth |
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Answer» Correct Answer - A (a) Elaters are hygroscopic in nature and help in dispersal of spores. |
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| 732. |
Spore dissemination in some liverworts is aided byA. Peristome teethB. ElatersC. lndusiumD. Calyptra |
| Answer» Correct Answer - B | |
| 733. |
In gymnosperms the pollen chamber representsA. A cavity in the ovule in which pollen grains are stored after pollination.B. An opening in the megagametophyte through which the pollen tube approaches the egg.C. The microsporangium in which pollen grain develops.D. A cell in the pollen grain in which the sperms are formed. |
| Answer» Correct Answer - C | |
| 734. |
In gymnosperms the pollen chamber representsA. A cavity in the ovule in which pollen grains are stored after pollinationB. An opening in the megagametophyte through which the pollen tube approaches the egg.C. The microsporangium in which pollen grains developD. A cell in the pollen grain in which the sperms are formed. |
| Answer» Correct Answer - A | |
| 735. |
Sexual reproduction in Spirogyra can be described asA. Morphological anisogamy and physiological isogamyB. Morphological as well as physiological isogamyC. Morphological as well as physiological anisogamyD. Morphological isogamy and physiological anisogamy |
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Answer» Correct Answer - d Sexual reproduction in Spirogyra can be described as fusion of two morphologically identical, but physiologically dissimilar gaemetes. |
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| 736. |
The sexual reproduction in Spirogyra isA. OogamousB. AnisogamousC. CleistogamousD. None of the above |
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Answer» Correct Answer - b Sexual reproduction of Spirogyra is physiological anisogamous. |
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| 737. |
Each character is given equal importance and at the same time hundreds of charactrers can be considered inA. cytotaxonomyB. morphotaxonomyC. chemotaxonomyD. numerical taxonomy. |
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Answer» Correct Answer - D Numerical taxonomy evaluates resemblances and differences or primitiveness and advancement through statistical methods based on a large nummber of characters obtained from all disciplines of biology. This is followed by assigning them number and code of compouter like plus (+) minus (- followed by compouter analysis. in this way, each character is given equal importance and at the smae time hundreds of characters can be considered. |
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| 738. |
Each character is given rqual importance and at the same time hundreds of characters can be considered inA. CladisticsB. PheneticsC. ChemotaxonomyD. Cytotaxonomy |
| Answer» Correct Answer - B | |
| 739. |
Which of the following is a colonial algae ?A. ChlamydomonasB. UlothrixC. VolvoxD. Spirogyra |
| Answer» Correct Answer - C | |
| 740. |
Anteriorly placed, equal, 2-8, flagella are characteristic toA. Bkue green algaeB. Green algaeC. Brown algaeD. Red algae |
| Answer» Correct Answer - B | |
| 741. |
Read the given statements and select the correct option Statement-1: Each sperm of moss has two flagella. Statement-2: Water is essential for fertilisation in mosses.A. Both statements 1 and 2 are correctB. Statement 1 is correct but statement 2 is incorrectC. Statement 1 is incorrect but statement 2 is correct.D. Both statement 1 and 2 are incorrect. |
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Answer» Correct Answer - A Sperm of mosses is biflagellated, i.e., it has two flagella that aid in propulsion. Since sperm must swim to the achegonium, fertilisation cannot occur without water. |
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| 742. |
A moss sperm moves by means ofA. pseudopodiaB. ciliaC. flagellaD. any of these. |
| Answer» Correct Answer - C | |
| 743. |
Select incorrect statement w.r.t characters of true mossA. Multicelled branched rhizoidsB. Presence of scalesC. Presence of protonemaD. Erect leafy axis as mature gametophyte |
| Answer» Correct Answer - B | |
| 744. |
All given members are monoecious, exceptA. MarchantiaB. FunariaC. AnthocerosD. Sphagnum |
| Answer» Correct Answer - A | |
| 745. |
Find odd w.r.t. ploidy level in bryophytesA. NCCB. VCCC. SporeD. Foot |
| Answer» Correct Answer - D | |
| 746. |
Pteridophytes are also calledA. Vascular amphibians of plant kingdomB. First tracheophytesC. Botanical snakesD. All of these |
| Answer» Correct Answer - D | |
| 747. |
Sporophyte of mosses is _________ than liverworts.A. Least differentiatedB. Equally differentiatedC. More differentiatedD. Undifferentiated |
| Answer» Correct Answer - C | |
| 748. |
Assertion: The sporogonium of Riccia is the simplest among the liverworts. Reason: Sporophyte consists of capsule only.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - a The sporagonium (capsule) of Riccia is the simplest among the liverworts. It lacks both the foot and the seta. Therer are no elater. Unlike other liverworts the embryo. Sporogonium and spore mother cells in Riccia develop non chloroplats. Thus no photosynthesis occurs there. the sporophyte remains totally dependent upon the gametophytic thallus. |
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| 749. |
Polytrichum hasA. heart shaped prothallusB. foot,seta and capsuleC. vascular bundlesD. mitospores |
| Answer» Correct Answer - B | |
| 750. |
Polytrichum isA. a liverwortB. a mossC. a horsetailD. a ferm |
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Answer» Correct Answer - B Polytrichum is a moss. |
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