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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. |
What is present on the surface of the leaves which helps the plant prevent loss of water but is absent in roots ? |
| Answer» Cuticle It is a waxy coating the entire plant surface. It is absent in roots, it prevents the loss of water through the surface of the plant body. | |
| 702. |
Lateral meristems areA. Phellogen and procambiumB. Procambium and dermatogensC. Fascicular cambium and procambiumD. Fascicular cambium and cork cambium |
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Answer» Correct Answer - D Fascicular cambium and cork cambium are lateral meristems. |
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| 703. |
Phloem parenchyma is absent in the phloem elements ofA. dicotsB. monocotsC. dicot stems onlyD. monocot stems only |
| Answer» Correct Answer - B | |
| 704. |
Medullary rays are made up ofA. FibersB. TracheidsC. Sclerenchyma cellsD. Parenchymatous cells |
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Answer» Correct Answer - D Medullary rays are made up of parenchymatous cells. |
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| 705. |
In barley stem vascular bundles areA. open and scatteredB. closed and scatteredC. closed and radialD. open and in aring |
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Answer» Correct Answer - B In Barely(monocot) stem, vascualr bundles are closed and scattered. |
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| 706. |
What is meristemsA. Diving cellsB. Non dividing cellsC. Permanent cellsD. Complex tissues |
| Answer» Correct Answer - A | |
| 707. |
What is the function of phloem parenchyma ? |
| Answer» The main function of phloem paranchyma is to store food and other substances like resins, latex and mucilage. They also help in transport of food. | |
| 708. |
Product of photosyntheis is transported from the leaves to various parts of the plants and stored in some cell before being utilised. What are the cells/tissues that store them ? |
| Answer» The food gets stored in specialised parenchymatous cells present either in roots and stems or in their modification in the form of a polysaccharide called starch. | |
| 709. |
Meristems are found inA. Cycas stemB. Fern leafC. Pollens of pinusD. Fern rhizome |
| Answer» Correct Answer - A | |
| 710. |
A closed callateral buyndle is one whereA. Xylem and phloem occurs on different radiiB. collateral bundle without cambiumC. Xylem and phloem are separated by cambiumD. Collateral bundle with cambium |
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Answer» Correct Answer - B A closed collateral bundle is one where collateral bundle without cambium. |
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| 711. |
which of the following is not correctA. Early wood is characterised by a large number of ylary elementsB. Late wood is characterised by a large number of xylary elementsC. Early wood is characterised by vessels with wider cavitiesD. Late wood is characterised bvy vessel with narrower cavities |
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Answer» Correct Answer - B Late wood is characterised by fewer xylary elements |
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| 712. |
A piece of wood having no vessels (trachea) must be belonging toA. teakB. mangoC. pineD. palm. |
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Answer» Correct Answer - C Vessels are absent in gymnosperms and pteridophytes with the exceptions of a few e.g., selaginnella gnetum. Presence of vessels is a characteristic feature of angiosperms. Out of the given options, teak, mago and palm are angiosperms, thus they will contains vessel. |
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| 713. |
A piece of wood having no vessels (trachea) must be belonging toA. teakB. mangoC. pineD. palm |
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Answer» Correct Answer - C Pine It is a gymnosperm. The plants belonging to this group do not have vessels instead, they have trachieds. Whereas teak, mango and plam are angiospermic tress. Angiospermic xylem contains vessels, tracheids, parenchyma and fibres. |
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| 714. |
The vascular cambium normally gives rise toA. Primary phloemB. Seconday xylemC. Periderm and secondary xylemD. Phelloderm |
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Answer» Correct Answer - B The vascular cambium normally gives rise to secondary xylem. |
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| 715. |
Protoxylem is the first formed xylem. If the protoxyem lies next to phloem what kind of arrangement of xylem would you call it ? |
| Answer» It protoxylem lies next to phloem the condition of the xylem arrangement is called as exarch. It is found roots. | |
| 716. |
The meristems which is /are responsible for producing secondsry tissue is/areA. Intrafasicluar cambiumB. Interfascicular cambiumC. Cork cambiumD. All of the above |
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Answer» Correct Answer - D The meristems which are responisble for producing secondary tissues are fascicular vascular cambium interfasciclular cambium and cork cambium |
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| 717. |
A column of water within xylem vessels of tall trees does not break under its weight because ofA. Positive root pressureB. Dissolved sugar in waterC. Tensile strength of waterD. Lignification of xylem vessels s |
| Answer» Correct Answer - C | |
| 718. |
Fill in the blanks : In …1… the protoxylem lies towards the periphery and metaxyleml lies towards the centre. Such arrangement of primary xylem is called …2.. In …3… the protoxylem lies towards th centre (pith) and the metaxylem lies twoards the periphery. This type of primary xylem is clled ..4..A. 1-roots,3-stems,2-endarch,4-exarchB. 1-roots,3-stems, 4-endarch,2-exarchC. 3-roots,1-stems,2-endarch,4-exarchD. 3-roots, 1-stems,4-endarch, 2-exarch |
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Answer» Correct Answer - B In roots the protoxylem lies towards the peiphery and metaxylem lies towards the center . Such arrangement of porimary xylme is called exarcxh. In stems sthe protoxylem lies towards the centre (pith) and athe meatxylem lies towards the periphery This type opf proimary xylem is calle endarch. |
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| 719. |
Which of the following is made up of dead cellsA. Xylem parenchymaB. CollenchymaC. PhellemD. Phloem |
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Answer» Correct Answer - c Phellem or cork is a tissue formed on the outer side of cork cambium . It is composed of dead cells. The cell walll become impermeabel due to suberisation. |
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| 720. |
A piece of wood having no vessels (trachea) must be belong toA. TeakB. MangoC. PineD. Palm |
| Answer» Correct Answer - c | |
| 721. |
Which of the following is not required for any of the techniques of DNA fingerprinting available at presentA. Plymerase chain reactionB. Zinc finger analysisC. Restriction enzymesD. DNA-DNA hybridization |
| Answer» Correct Answer - B | |
| 722. |
Specialised epidermal cells surrounding the guards cells are calledA. Complementary cellsB. Subsidiary cellsC. Bulliform cellsD. Lenticels |
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Answer» Correct Answer - B Specialised epidermal cells surrounding the gurad cells are called subsidisary cells. |
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| 723. |
The vascular cambium normally gives rise toA. phellodermB. primary phloemC. secondary xylemD. perderm |
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Answer» Correct Answer - c Vascular cambium located between xylem and phloem in the stems and roots of vascular plants. It produces secondary xylem towards the pith and secondary phloem towards the bark. Phellogen is made of narrow thin - walled and nearly rectangular cells . phellogen cuts off cells on both sides . the outer cells differentiate into cork or phellem while inner cells differentiate into secondary cortex or phelloderm. the phellogen, phellem and phelloderm are collectively known as perderm. |
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| 724. |
Cortex is the region found betweenA. Epidermis and saleB. Pericycle and endodermisC. Endodermis and pithD. Endodermis and vascular bundle |
| Answer» Correct Answer - A | |
| 725. |
Cortex is the region found betweenA. Endodemis and vascular bundleB. Epidermis and steleC. Pericycle and endodermisD. Endodermis and pith |
| Answer» Correct Answer - B | |
| 726. |
No vessels are found in the wood ofA. pineB. EucalyptusC. teakD. sheesham |
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Answer» Correct Answer - A Wood of gymnosperms does not contain vesels. Thus, pine is vesselless. Vessels are characteristic feature of angiosperms like teak (Techtona grandis), mango (Mangifera indica) and coconut (Cocos nucifera). |
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| 727. |
Specialised epidermal cells surrounding the guards cells are calledA. Subsidiary cellsB. bulliform cellsC. lenticelsD. complementary |
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Answer» Correct Answer - a Few epidermal cells , in the vicinity of the guard cells become spesialised in their shape and size and are known as subsidiary cells . Theses cells are devoid of chloroplasts. The stomatal aperture , guard cells and the surrounding subsidiary cells are together called stomatal apparatus. |
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| 728. |
Cortex is the region found betweenA. Endodoermis and pithB. Endodermis and vascular bundleC. Epidermis and stele`""^(**)`D. Pericycle and endodermis |
| Answer» Correct Answer - C | |
| 729. |
Which one of the following statements is not correctA. In potato, bunana and ginger, the plantlaets airs from the internodes present in the modified stem,B. Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishesh.C. Offspring produced by the asexual reproductin are called cloneD. Microscopic, motile asexual reproductive structures are called zoospores. |
| Answer» Correct Answer - A | |
| 730. |
Cortex is the region found betweenA. epidermis an steleB. pericycle and endodermisC. endodermis and pithD. endodermis and vascular bundle |
| Answer» Correct Answer - A | |
| 731. |
Cortex is the region found betweenA. epidermis and steleB. pericycle and endodermisC. endodermis and pithD. endodermis and vascular bundle |
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Answer» Correct Answer - A Cortex tissue is found in between the epidermis and stele. It is multilayered and is made up of parenchymatous cells with big intercellular spaces. |
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| 732. |
the baloon- shaped structuces called tylosesA. originate in the lumen of vesselsB. characterise the sapwoodC. are extensions of xylem parenchyma cells into vesselsD. are linked to the ascent of sap through xylem vessels |
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Answer» Correct Answer - C The tyloses are the structures found in the woody tissues of dicot stems. Thowe are the extension of xylem parenchyma cells into the vessel elements. |
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| 733. |
the baloon- shaped structuces called tylosesA. originate in the lumen of vesslesB. characterize the spawoodC. are extensions of xylem parenchyma cells into vesselsD. are linked to the ascnet of sap through xylem vessels |
| Answer» Correct Answer - C | |
| 734. |
the baloon- shaped structuces called tylosesA. Are extension of xylem parenchyma cells into vesselsB. Are linked to the ascent of sap through xylem vesselsC. Originate in the lumen of vasselsD. Characterze the sapwood |
| Answer» Correct Answer - A | |
| 735. |
the baloon- shaped structuces called tylosesA. Originate in the lumen of vesselsB. Characterize the sapwoodC. Are extensions of xylem parenchuyma cells into vessels.D. Are linked to the ascent of sap through xylem vessels. |
| Answer» Correct Answer - C | |
| 736. |
Which of the following is not true about early wood?A. It is formed during spring seasonB. It has a lower density than late woodC. Its vessels have wider lumenD. It is produced when activity of cambium is lesser. |
| Answer» Correct Answer - d | |
| 737. |
Vascular cambium ring is constituted byA. Interfascicular and cork cambiumB. Intrafascicular and cork cambiumC. Intrafascicular and interfascicular cambiumD. Only cork cambium |
| Answer» Correct Answer - c | |
| 738. |
Derivatives of the secondary meristem in the steler region areA. Phellem and phellodermB. Album and primary phloemC. Duramen and AlburnumD. Primary xylem and secondary phloem |
| Answer» Correct Answer - C | |
| 739. |
Derivatives of the secondary meristem in the steler region areA. Phellem and phellodermB. Alburnum and primary pholemC. Duramen and alburnumD. Primary xylem and secondary pholem |
| Answer» Correct Answer - C | |
| 740. |
The meristem which does not participate in the formation of secondary tissues is:A. Intercalary meristemB. Vascular cambiumC. Interfascicular cambiumD. Cork cambium |
| Answer» Correct Answer - a | |
| 741. |
Wheat and grass stems elongate by the activity ofA. intercalary meristemB. apical meristemC. lateral meristemD. secondary meristem |
| Answer» Correct Answer - A | |
| 742. |
Secondary tissues such as secondary xylen develops fromA. lateral meristemB. promeristemC. apical meristemD. intercalary meristem |
| Answer» Correct Answer - A | |
| 743. |
Main function of lenticles isA. Transpiration and exchanges of gasesB. GuttationC. BleedingD. Gaseous exchange |
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Answer» Correct Answer - A::D Main function of lenticles is gaseous exchange. |
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| 744. |
Main function of lenticles isA. transpirationB. guttationC. gaseous exchangeD. bleeding |
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Answer» Correct Answer - c The primary function of lenticels is gaseous exchange . Lenticel respiration generally seen in stem of dicotyledons plants. Transpiration takes place mostly through stomata . Guttation and bleeding takes place through hydathodes. |
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| 745. |
Vessels are found inA. all angiosperms and some gymnospermsB. most of angiosperms and few gymnospermsC. all angiosperms and few gymnosperms and some pterdophytesD. all pteridophytes |
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Answer» Correct Answer - b Most anigosperms have vessels except a few (e.g. Drimys, Tetracentron , Trochodendron).The gymnosperms, as a rule , lack vessels but these are found in the order - Gnetales . Vessels are the constituent of xylem . They are composed of row of cells placed one above the other . Transverse wall of these cells is absent due to the dissolution. |
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| 746. |
What happens during vascularisation in plants ?A. Differentiation of procambium is immediately followed by the development of secondary xylem and phloemB. Differentiation of procambium followed by the development of xylem and phloemC. Differentiation of procambium , xylem and phloem is simultaneousD. Differentiation of procambium followed by the development of primary phloem and then by primary xylem |
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Answer» Correct Answer - c From the procambium , primary xylem and phloem arise simultaneously. |
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| 747. |
Axillary bud and terminal bud are derived from the activity ofA. lateral meristemB. intercalary meristemC. apical meristemD. parenchyma |
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Answer» Correct Answer - c It is the shoot apical meristem which gives rise to lateral bund. The lateral bunds however remain suppressed due to the apical dominance. |
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| 748. |
Loading of phloem is related toA. increases of suger in phloemB. elongation of phloem cellC. separation of phloem parenchymaD. strengthening of phloem fibre |
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Answer» Correct Answer - a Sugar synthesied in leaves (source) is loaded in phloem through which it is transported to all other parts of plants where it is required (sinks). |
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| 749. |
Which of the following is a complex tissueA. ParenchymaB. CollenchymaC. XtlemD. Sclerenchyma |
| Answer» Correct Answer - C | |
| 750. |
A bicollateral vascular bundle is characterised byA. Pholem being sandwitched between xylemB. transverse splitting of vascular bundleC. longitudinal splitting of vascular bundle xylem being sanwtched between phloemD. Bicollateral vascular bundles are conjoint bundles having phloem both on the outer and inner side of xylem |
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Answer» Correct Answer - d Bicollateral vascular bundles are conjoint bundles having phloem both on the outer and inner side of xylem , e.g. Cucurbita . These vascular bundles generally seen in Solanaceae (the potato family) and cucurbitaceae (the cucumber family In this situation phloem is presents on both outside and inside the xylem. |
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