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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.
| 801. |
as compared to a dicot root, a monocot root hasA. More abundant secondary xylemB. Many xylem bundlesC. Inconspicous annual ringsD. Releatively ticker periderm |
| Answer» Correct Answer - B | |
| 802. |
Lenticels are involved inA. TranspirationB. Gaseous exchangeC. Food transportD. Photosynthesis |
| Answer» Correct Answer - B | |
| 803. |
Assertion : In collateral vascular bundles phloem is situated toward inner side. Reason : In monocot stem, cambium is present .A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.B. If both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.C. If Assertion is true, but Reason is false.D. Both Assertion and Reason are false |
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Answer» Correct Answer - D In collateral vascular bundles, phloem is situated towards outer side and xylem towards inner side and both are found on same radii, but in monocot stem, vascular bundles are closed, i.e. cambium is absent. |
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| 804. |
Fill in the blanks : a.In the …1.. The vascular bundles have no cambium present in them .Hence since they do not form secondary tissue they are referered to as ..2.. b.In…3..stems cambium is present betweeen phloem and xylem such vasuclar bundles becuse of the presence of cambium possess the ability to form secondasry xylem and [hloem tissues and hence called ...4.. vascular bundlesA. 1-monocotyledons, 3-dicotyledons, 2-open, 4-c closedB. 3-monocotyledons, 1-dicotyledons,2-open 4-closedC. 1-monocotyledons, 3-dicotyledons, 4-open, 2-c closedD. 3-monocotyledons, 1-dicotyledons, 4-open, 2-c closed |
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Answer» Correct Answer - C In the monocotyledons , the vascualr buyndles have no cambium present in them .Hence since they do not form secondary tisue they are refferred to as closed In dicotyledons stems, cambium in present between phloem and xylem. Such vascualr bundles because of the presence of cambium lossess the ability to formf secondary xylem and phloem tissues and hence called open vascular bundles. |
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| 805. |
Which type of arrangement of vascular bundles occurs in the roots of monocots?A. Conjoint openB. RadialC. Conjoint closedD. Bicollateral |
| Answer» Correct Answer - B | |
| 806. |
Interfascicular cambium develops from the cells ofA. Medullary raysB. Xylem parenchymaC. EndodermisD. percycle |
| Answer» Correct Answer - A | |
| 807. |
Interfascicular cambium develops from the cells ofA. medullary raysB. xylem parenchymaC. endodermisD. pericycle |
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Answer» Correct Answer - a In dicot stems , the cells of cambium present between primary xylem and primary phloem is the intrafascicular cambium . The cells of medullary rays , adjoining these intrafascicular cambium become meristematic and from the interfascicular cambium. Xylem parenchyma are living and thin - walled and their cell walls are made up of cellulose . In dicot roots the innermost layer of the cortex is called endodermis . Next to endodermis lies a few layers of thick walled parenchymatous cells called as pericycle. |
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| 808. |
Fascicular cambium is the cambium of vascular bundle ofA. monocot stemB. dicot stemC. monocot leafD. dicot leaf |
| Answer» Correct Answer - B | |
| 809. |
Vascular bundles are conjoint, collateral, endarch and lack cambium between xylem and pholem in all, but not inA. MaizeB. BarleyC. WheatD. Sunflower |
| Answer» Correct Answer - D | |
| 810. |
Vascular bundles having phlowm on the periphery of both outer and inner cambium areA. Bicollateral closedB. Bicollateral openC. RadialD. Biradial |
| Answer» Correct Answer - B | |
| 811. |
The presence of cambium in the vascular bundles provides them the ability toA. Radially transport the foodB. Form secondary tissuesC. Prevent water loss due to transpirationD. Conduct photosynthesis |
| Answer» Correct Answer - B | |
| 812. |
Assertion: In Cucurbita stem, vascular bundles are conjoint, bicollateral, and their open or close. Reason: The outer and inner cambium are present and only inner cambium is functional in Cucurbita stem.A. If both Assertin and Reason are true and the Reason is the correct explanatin of the Assertion.B. If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.C. If Assertion is true, Reason is false.D. If both Assertion and Reason are true. |
| Answer» Correct Answer - D | |
| 813. |
What part of the plant would show the following ? (a) Radial vascular bundle (b) Polyarch xylem (c) Well develop pith |
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Answer» (a) Radial Vascular Bundle The xylem and phloem are present on the separate radii of the root. The arrangement of vascular bundle is known as radial vascular bundle. (b) Polyarch Xylem When many strands of xylem are present, it is referred to as ployarch condition-a characteristic feature of monocot root (c) Well Developed Pith Dicot stem and monocot roots have well developed pith formed or parenchymatous cell with intercellular spaces. |
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| 814. |
Assertion: Fascicular vascular cambium, interfascicular cumbium and cork-cambium are examples of lateral miristems. Reson: These are responsible for producing the secondary tissues.A. If both assertion and reason are true and reason is the correct explanantion of assertionB. if both assertion and reason are true but reason is not the correct explanation of assertion.C. if assertion is true but reason is false.D. if both assertion and reason are false. |
| Answer» Correct Answer - B | |
| 815. |
Interfascicular cambium develops from the cells ofA. PericycleB. Medullary raysC. Xylem parenchymaD. Endodermis |
| Answer» Correct Answer - B | |
| 816. |
Interfascicular cambium is foundA. between pith and vascular bundleB. between two vascular bundlesC. in the vascular bundleD. outside the bundle |
| Answer» Correct Answer - B | |
| 817. |
A conjoint and open vascular bundle will be observed in the transverse section ofA. Monocot rootB. Monocot stemC. Dicot rootD. Dicot stem |
| Answer» Correct Answer - D | |
| 818. |
Phellogen and phellem respectively denoteA. Cork and cork cambiumB. Cork cambium and corkC. Secondary cortex and corkD. Cork and secondary cortex |
| Answer» Correct Answer - B | |
| 819. |
A dicot plant in which scattered vascular bundles are present in stem isA. YuccaB. PereromiaC. DolichosD. Helianthus |
| Answer» Correct Answer - B | |
| 820. |
Vascular bundles with cambium are calledA. ClosedB. OpenC. ExarchD. Endarch |
| Answer» Correct Answer - b | |
| 821. |
Match the items in Column-I with Column-II and choose the correct option `{:(,"Column"-1,,"Column"-2,),(A.,"Radial Vascular Bundle",1.,"Cucurbita pepo",),(B.,"Collateral Vascular Bundle",2.,"Dracaena",),(C.,"Bicollateral Vascular Bundle",3.,"Roots of ",),(,,,"angiosperms",),(D.,"Amphicribal Vascular Bundle",4.,"Sunflower stem",),(E.,"Amphivasal Vascular Bundle",5.,"Fern",):}`A. A-3, B-4, C-1, D-5, E-2B. A-2,B-3, C-1, D-5, E-4C. A-3, B-4, C-5, D-1, E-2D. A-4, B-5, C-1, D-2, E-3 |
| Answer» Correct Answer - A | |
| 822. |
Interfascicular cambium and cork cambium are formed due toA. Cell divisionB. Cell differentiationC. Cell dedifferentiationD. Redifferentiation |
| Answer» Correct Answer - A | |
| 823. |
Cork is a derivative ofA. Cork cambium (phellogen ) or extra fascicular cambiumB. Vascular cambiumC. Fascicular cambiumD. Interfascicular cambium |
| Answer» Correct Answer - A | |
| 824. |
Cork tissue arises fromA. peridermB. phellogenC. pellodermD. phellem |
| Answer» Correct Answer - B | |
| 825. |
innermost layer of cortex isA. EpidermisB. HypodermisC. EndodermisD. Pith |
| Answer» Correct Answer - c | |
| 826. |
The most primitive type of stele isA. EusteleB. SolenosteleC. ProtosteleD. Siphonostele |
| Answer» Correct Answer - C | |
| 827. |
The composition of stele isA. Pith , Vascular bundleB. Pericycle, pithC. Endodermis, PericycleD. Endodermis, pericycle, pith |
| Answer» Correct Answer - A | |
| 828. |
Star shaped stele devoid of pith termed asA. ActinosteleB. SolenosteleC. DictyosteleD. Plectostele |
| Answer» Correct Answer - A | |
| 829. |
The collective term used for phelloderm (secondary cortex), cork cambium (phellogen) and cork (phellem) isA. pericycleB. peridermC. protodermD. ring,scaly |
| Answer» Correct Answer - B | |
| 830. |
The bark of which plant is used as spices?A. QuercusB. CinchonaC. CinnamonD. Betula |
| Answer» Correct Answer - C | |
| 831. |
Match column I with column II and select the correct option from the given codes. `{:("Column I","Column II"),(A." Stele",(i)." Innermost layer of cortex"),(B." Endodermis",(ii)." Suberin"),(C." Casparianstrips",(iii)." all the tissues outer to vascular combium"),(D." Bark",(iv)." All thetissues innerto endodermis"):}`A. A-(iv),B-(i),C-(ii),D-(iii)B. A-(iii),B-(ii),C-(i),D-(iv)C. A-(i),B-(ii),C-(iii),D-(iv)D. A-(iv),B-(ii),C-(i),D-(iii). |
| Answer» Correct Answer - A | |
| 832. |
The bark of which plant is used as spices?A. AcaciaB. CinchonaC. QuercusD. Cinnamon |
| Answer» Correct Answer - D | |
| 833. |
Match column I with column II and select the correct option from the given codes. `{:("Column I","Column II"),(A." Bhojpatra",(ii)." Bark of Cinchona"),(B." Quinine",(ii)." Cork of Quercus suber"),(C." Insulators (sound proofing)",(ii)." Bark of betula"),(D." Dalchini",(iv)." Bark of Cinnamomum"):}`A. A-(iii),B-(i),C-(ii),D-(iv)B. A-(iv),B-(i),C-(ii),D-(iii)C. A-(iv),B-(ii),C-(iii),D-(i)D. A-(iii),B-(i),C-(iv),D-(ii) |
| Answer» Correct Answer - A | |
| 834. |
Bark refers to all tissues exterior to theA. cork cambiumB. PericycleC. Vascular cambiumD. Periderm |
| Answer» Correct Answer - C | |
| 835. |
Which of the following statements are incorrect? (i). Secondary growth usually occurs in monocotyledons. (ii). Bark refers to all tissues interior to vascular cambium. (iii). Lenticels permit the exchange of gases between the outer atmosphere and the internal tissue of the stem. (iv). Annual rings give an estimate of the age of the tree.A. (i) and (ii) onlyB. (i) and (iii) onlyC. (i) and (iv) onlyD. (ii) and (iv) only |
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Answer» Correct Answer - A Secondary growth usually does not occur in monocotyledons. Bark refers to all tissues exterior to vascular cambium. |
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| 836. |
Piliferous layer refers toA. epiblemaB. exodermisC. epidermisD. pericycle |
| Answer» Correct Answer - A | |
| 837. |
The alternate name of bulliform cells isA. guard cellsB. sheath cellsC. myrosin cellsD. motor cells |
| Answer» Correct Answer - D | |
| 838. |
exchange of gases between air and the internal tissues of older corky stems takes place throughA. Sieve platesB. PitsC. StomataD. Lenticels |
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Answer» Correct Answer - D Exchange of gases between air and the internal tissues of older corky stems takes place though lenticles. |
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| 839. |
exchange of gases between air and the internal tissues of older corky stems takes place throughA. Sive tubeB. PitsC. StomataD. Lenticels |
| Answer» Correct Answer - B | |
| 840. |
Which of the following characteristic differentiates monocot root from a dicot root?A. Radlal vascular bundlesB. Well-developed large plthC. Scattered vascular bundlesD. Xylem exarch |
| Answer» Correct Answer - B | |
| 841. |
Following table summarises the differences between a monocot root and a dicot root. Identify the incorrect differences and select the correct optionA. (i) and (iii)B. (i) and (iv)C. (iii) and (iv)D. (ii) and (iii) |
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Answer» Correct Answer - C In monocot root, a well developed pith is present whereas in dicot root, pith is poorly developed. In monocot root, pericycle gives rise to lateral roots only whereas in dicot root, pericycle given rise to secondary roots and cork cambium. |
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| 842. |
The percentage of trecheids in soft wood isA. `5-10%`B. `90-95%`C. `15-25%`D. `35-45%` |
| Answer» Correct Answer - B | |
| 843. |
Secretory tissues that secrete proteolytic enzymes are found inA. NepenthesB. PlumbagoC. UrticaD. Polygonum |
| Answer» Correct Answer - A | |
| 844. |
Articulated laticifers areA. Formed by the fusion of cellsB. A network like structureC. Found in the plants which are the source of commercial rubberD. All of these |
| Answer» Correct Answer - D | |
| 845. |
The parenchymaa cells that make the aquatic plants light and buoyant helping them afloat cellsA. prosenchymaB. aerenchymaC. assimilatory parenchymaD. stellate parenchyma |
| Answer» Correct Answer - B | |
| 846. |
The best differentiation of meshophyll tissue into adaxial palisade tisse and abaxial spongy tissue is seen in plants with leaves that areA. Under waterB. Held verticalC. Held horizontalD. Succulent |
| Answer» Correct Answer - C | |
| 847. |
outer lighter coloured/alburnum region of wood isA. Autumn woodB. Spring woodC. Heart wood and sap woodD. Sapwood and involved in conduction of water and minerals |
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Answer» Correct Answer - A::D Outer lighter /alburnum region of wood is sapwood. |
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| 848. |
If you cut the old trunk of a tree transversely, you will observe that the outer region of secondary wood is lighter in colour. This region of wood is known asA. Autumn woodB. Sap woodC. Heart woodD. Spring wood |
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Answer» Correct Answer - B The outer young and functional part of xylem is called sap wood. The functions of conduction of water and dissolved mineral from roots is now performed by outer younger rings of secondary xylem which constitute the sapwood. |
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| 849. |
Assertion : Higher plants have meristematic regions for indefinite growth. Reason : Higher plants have root and shoot apices.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the 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 Higher plants have root and shoot apices where cells are in continuous state of division. Here they can grow indefinitely. Such regions are not found in animals. |
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| 850. |
outer lighter coloured/alburnum region of wood isA. Autumn woodB. Sring woodC. Heart woodD. Sapwood |
| Answer» Correct Answer - D | |