Tuesday, March 10, 2015

HISTOLOGY AND ANATOMY OF FLOWERING PLANTS

Histology and Anatomy of flowering plants

1.       Select the true statement
          1) All apical meristems are lateral           2) All lateral meristems are secondary
          3) All secondary meristems are lateral    4) All intercalary meristems are secondary
2.       Select the true statement
          1) Primary meristems do not involve in secondary growth
          2) Secondary meristems do not involve in primary growth
          3) Secondary meristems are derived from primary meristems
          4) Primary meristems are formed by differentiation
3.       “Curly top” of tobacco is caused by “A “and it spreads through a plant via  “ B “ . A and  B are
          1) Bacteria and cell sap                                     2) Virus and Xylem   
          3) Fungi and Phloem                                         4) Virus and Phloem
4.       Sclerenchyma is classified on the basis of
           i) Form                         ii) Structure                   iii) Origin                      iv)  Function
          v) Development                  
          1) i, and ii only              2) ii and iii only           3) i, ii, iii & v only       4) i , ii, iii, iv and v
5.       Vascular cambium and cork cambium are  
          A) Lateral meristerms
          B) Responsible for producing the secondary tissues
          C) Responsible for increasing the girth of the organs
          D) Cylindrical meristerms
          1) A,B&C only              2) A,B,C &D             3) B,C&D only                       4) B&D only
6.      Incorrect one among the following
         1) Phloem parenchyma absent – most of the monocotyledons
         2) Sieve tubes and companioncells absent – gymnosperms
         3) Fibres are generally absent – primary phloem
         4) Complex tissues are absent – all cryptogams
7.      Identify the incorrect statement regarding xylem
         1) In flowering plants, tracheids and vessels  are the main water transporting elements
         2) Gymnosperms lack vessels in their xylem
         3)Angiosperms lack tracheids in xylem 
         4) Xylem  functions as conducting tissue for water and minerals and also provides mechanical strength to the plant parts
8.      Vascular  bundles of roots are
         1) Collateral, open, endarch                               2) Conjoint, closed, exarch
         3) Separate, radial, endarch                                4)  Separate, closed , exarch
9.      Correct statement of the following is
         1. Secondary xylem  comprises of  protoxylem and metaxylem
         2) Ray parenchyma is present both in primary and secondary xylem
         3) Tracheids have thick lignified wall and obliterated central lumen
         4) Primary xylem is endarch in  stems
10.    Epidermal cells possess  chloroplasts in
         1) All cells on the adaxial  surface of leaves        2) All epidermal layers except those of  roots 
         3) Cells of stomatal apparatus only                      4) Guard cells
11.    Conjoint and closed vascular bundles are found in
         1) All stems and leaves                                            2) Only the leaves of dicot and monocot plants
         3) Leaves and stems of monocot plants only    
         4) Monocot stems, leaves of dicot and monocot plants
12.       Interfascicular cambium is an example for
1)Intercalary meristem      2)Primary meristem           3)Apical meristem              4)Lateral meristem
13.       The cell structure present in collenchyma but absent in sclerenchyma is
1)lignified cell walls          2)intercellular spaces         3)vacuoles                           4) pits in cell wall
14.       Find out the incorrect statement?
1)Simple tissues may be made up of living or dead cells
2)In grasses growth of the plant body is carried by the activity of both apical and intercalary meristems
3)Collenchyma and sclerenchyma  provides mechanical support to the dicot plants
4)Primary plant body is made up of  parenchyma, collenchyma and sclerenchyma tissues only
15.    Analyse the following statements. choose correct statements
         i) In the formulation of primary plant body, apical meristem regions produce dermal tissues, ground tissues and vascular tissues.
         ii) Axillary buds present in the axils of leafs arises from the intercalary meristems .
iii) Intercalary meristem occur in grasses and regenerate parts removed by the grazing herbivores.
         iv) Secondary tissues of a plant are produced by lateral meristems only.
         1) expect iv                   2) expect iii                    3) except ii                              4) except i&ii
16.    Analyse the following  lists. Choose the correct matching
         List – I                                                                 List – II
         ( Vascular bundle types )                                   (part of a plant)
         I) Bi collateral vascular bundle                         A. Cucurbita root
         II) Radial vascular bundle                                 B. Dicot root
        III) Collateral closed  vascular bundle              C. Leaf    
IV) Collateral and open vascular bundle       D. Cucurbita stem     
                                                                            E. Sunflower stem         
          1) I - A, II - B, III - C, IV - E                          2) I - D, II - B, III - C, IV - E                 
           3) I - B, II - C, III - D, IV - A                         4) I - D, II - C, III - E, IV – B
17. Choose the correct statements.
i) Outer walls of guard cells are thin and inner walls are highly thickened in a stomatal apparatus of dicots.
ii) Each stomatal apparatus in monocot leaf is having less number of subsidiary cells when compared   to dicot leaf.
        iii) In phloem tissue companion cells help in maintaining of pressure gradient in sieve cells.
         iv) Phloem fibers are absent in primary phloem, but present in secondary phloem.
       1)  i, iii and iv                  2) i, ii and iv                3)ii, iii and iv               4) i, ii, iii and iv
18.  Assention :- Primary meristems alone contribute for the formation of primary Plant body.
        Reason :- Cylindrical meristems alone contribute for the formation of secondary Plant body.
       1) Both A and R are correct. R is the correct explanation of A.
       2) Both A and R are correct. R is not the correct explanation of A.
       3) A is true, but R is false                        4) A is false, but R is true
19.     Conjoint and open vascular bundles are seen in
          A) Dicot stem                   B) Monocot stem            C) Dicot leaf                    D) Monocot leaf
          1) A, B only                      2) A only                          3) C, D only                     4) B, C only
20.     Vascular cambium in dicot roots is
          1) Partly primary & partly secondary in origin
          2) Completely secondary and formed from cortex
          3) Completely primary and formed from pericycle
          4) Formed partly from pericycle and partly from conjunctive tissue
21.     Match the following :-
          A) Guard cells                 E) Lateral roots                                I) Monocots
          B) Pericycle                     F) Reduce transpiration                  J) Secretory
          C) Trichomes                  G) Dumbell shape                            K) Chloroplasts
          D) Mesophyll                   H) Ground tissue                             L) Vascular cambium
          1) AFJ, BEI, CGL, DHK                                          2) AEI, BFJ, CGK, DHL
          3) AGI, BEL, CFJ, DHK                                          4) AHI, BGJ, CFK, DEL
22.     Tissues of dicot root that help in secondary growth are
          I) Cortex                          II) Pericycle                     III) Pith                            IV) Conjunctive tissue
          1) I & II                            2) II & IV                        3) II&III only                   4) IV only
23.     Assertion (A) : The dorsal surface of dorsiventral leaf is dark green in colour
          Reason (R) : Spongy parenchyma lies between palisade parenchyma and lower epidermis in a dorsiventral leaf
          1) Both A and R are correct.  R is the correct explanation of A.
          2) Both A and R are correct.  R is not the correct explanation of A.
          3) A is false, but R is true                                          4) A is true, but R is false          
24.     Arrange the following structures from periphery to centre in dicot stem
          I) Endodermis                 II) Hypodermis               III) Pericycle                   IV) Epidermis
          1) IV, II, I, III                  2) III, I, IV, II                 3) III, I, II, IV                  4) IV, II, III, I
25.     The stomata in an isobilateral leaf are
          1) Present only on the adaxial epidermis                   2) Present only on the abaxial epidermis
          3) Absent on both the surfaces of epidermis             4) Present on both the surfaces of the epi
26.     When the bulliform cells in grass leaves absorb water, they
          I) Become turgid                                                      II) Become flaccid
          III) Make the leaves curl inwards                          IV) Make the leaf surface exposed
          1) II and III                      2)  I and III                      3)  I and IV                      4)  II and IV
27.     Study the following lists.
          List-I                                                                         List-II
          A) Spring wood                                                       I)   Early wood
          B)  Autumn wood                                                     II)  Late wood
          C) Heart wood                                                         III) Peripheral light coloured wood
          D) Sap wood                                                            IV) Central dark coloured wood
          The correct match is
                A              B                C                D                        A              B                 C                D
          1)                    I                 II                III                 IV                 2)  II            III               IV           I
          3)  I                 II               IV               III                 4)  IV            III               II                I
28.     Assertion (A) : Vascular cambium of dicot roots is initially an incomplete wavy ring.
          Reason (R) : Vascular cambium in dicot roots is formed partly from pericycle and partly from tissue located just below the phloem bundles.
          1)  A and R are true and R is the correct explanation of A.
          2)  A is false, R is true
          3)  A and R are true and R is not the correct explanation of A.                       
          4) A is true, R is false.
 29.    Identify the incorrect statement from the following.
          1) Most part of the bark consists of living tissues
          2) Bark is formed by the activity of both cork cambium and vascular cambium
          3) Most part of the cork is derived from vascular cambium
          4) Conducting zone of bark is derived from vascular cambium
30.     The transverse section of a plant material shows the following anatomical features
          a) The vascular tissues are arranged in an alternate manner on different radii
          b) The pith is small (or) inconspicuous
          What will you identify it as ?
          1) Sunflower stem            2) Maize stem                   3) Sunflower root             4) Sorghum root
31.     Study the following lists.
          List-I                                                                         List-II
          A) Heart wood                                                         I) Thick suberised cell walls
          B)  Phelloderm                                                          II) Thin walled living cells
          C) Cork tissue                                                          III) Thick lignified cell walls
          D) Secondary medullary rays                                 IV) Chlorenchyma cells
                                                                                             V) Meristematic cells
          The correct match is
                A              B                C                D                        A              B                 C                D
          1)                    IV              II                I                    V                   2)  III          IV               I  II
          3)  III              V               I                  II                   4)  I               V                 III               IV
32.     Arrange the following tissues of secondary dicot stem in correct sequence from inner side to outer side
          A) Secondary phloem     B) Heart wood                C) Phelloderm
          D) Sap wood                    E) Phellem
          1) E, C, A, D, B               2) B, D, A, C, E               3) D, B, A, C, E               4) B, D, A, E, C
33.    In a monocot root xylem condition is                   
         1) Monarch                     2) Triarch                           3) Tetrarch                                  4) Polyarch
34.    Outer most layer of stele in the root is
         1) Endodermis               2) Pericycle                       3) xylem bundles       4) Conjuctive tissue
35.     Assertion (A): Large pith is present in monocot root  
          Reason (R): Centripetal differentiation of xylem do not extends upto the centre
          1)  Both A and R are true and R is the correct explanation of A
          2)  Both A and R are true but R is not the correct explanation of A
          3) A is true and R is false                                       4) R is true and A is false
36.    Root hairs are
         1) Unicellular branched                                            2) Unicellular unbranched
         3) Multicellular uniseriate                                        4) Multicellular multiseriate
37.    Presence of Casparian strips is the characteristic feature of
         1) Endodermis               2) Epidermis                      3) Pericycle                     4) Conjunctive tissue
38.    Arrange the parts of monocot root in centrifugal manner
         1) Epidermis, Cortex, Endodermis, pericycle, protoxylem, metaxylem, pith
         2) Pith, Metaxylem, protoxylem, endodermis, pericycle, cortex, epidermis
         3) Epidermis, cortex, Endodermis, Pericycle, Metaxylem, Protoxylem, pith
         4) Pith, Metaxylem, protoxylem, Pericycle, endodermis, Cortex, Epidermis
39.    Find out the incorrect statement regarding dicot root
         1) Absence of cuticle and stomata                           2) Presence of unicellular root hairs
         3) Number of xylem strands are limited                  4) Protoxylem elements facing towards centre
40.    In roots conjunctive tissue lies in between
         1) Epidermis and endodermis                                  2) Endodermis and pericycle

         3) Xylem and phloem                                              4) Protoxylem and Metaxylem

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