Monday, October 14, 2013

HISTOLOGY AND ANATOMY OF FLOWERING PLANTS

1.    Find the mismatch of the following
    1. Epidermis-Cells are elongated and compactly arranged
    2. Cuticle-protection       
    3. Guard cell-Bean shaped in Grasses
    4. Guard cell-Chlorenchymatous
2.    Fundamental tissue system of primary stem and root consists of
    1. Stele, Cortex    2. Cortex, Pith only
    3. Cortex, Mesophyll, Pericycle, and Pith
    4. Cortex, peicycle, Pith, Medullary rays
3.    Choose the incorrect one
    1. Ground tissue may consists of simple tissues that lies in between epidermis and vascular     bundles
    2. In leaves the ground tissue consists of thin walled chloroplast containing cells called mesophyll
    3. The vascular system consists of complex tissue the pholem and xylem
    4. Secondary growth/secondary tissues are formed in monocots due to the presence of cambium
4.    Match the following   
    List-1                List-2
    A. Epidermis    I. Bean shaped cells
    B. Cuticle    II. Stomatal aperture, guard                 cells and subsidiary cells
    C. Stomatal apparatus    III. Thick waxy layer
    D. Guard cells        IV. Outermost layer
        A    B    C    D            1.    II    III    IV    I   
    2.    IV    III    II    I
    3.    I    II    III    IV   
    4.    II    I    III    IV
5.    Find the mis-match
    1. Conjoint vascular bundles - Xylem and phloem on different radii
    2. Closed Vascular Bundles-Secondary tissues absent
    3. Radial Vascular Bundles- Xylem and Phloem on different radii
    4. Dicotyledonous stem-Cambium
6.    Trichomes of shoot system
    1. usually multicellular       
    2 may be branched or unbranched
    3. may be soft or tough       
    4. all are realted
7.    After two years of secondary growth the cortex in a dicot root
    1. Remains intact       
    2. Completely sloughed off
    3. Is largely lost       
    4. is converted into cork
8.    In dicot root, during secondary growth, vascular cambium is formed from
    1. only pericycle       
    2. pericycle present in contact with protoxylem and conjuctive tissue present below the phloem
    3. complete ring of pericycle and conjunctive tissue present below the xylem
    4. complete ring of pericycle and total conjunctive tissue
9.    unique feature of secondary growth in dicot root when compared with the stem is(NEET )
    1. formation of vascular cambium from stelar tissue in all species
    2. formation of cork cambium from extrastelar tissue in all species
    3. formation of both cork cambium and vascular cambium from stelar tissue in many of the species
    4. formation of vascular cambium from stelar tissue and cork cambium from cortical tissue in many of the species
10.    Find out the correct reason for non-existence of sharp annual rings in Secondary dicot root as found in secondary wood of dicot stem                        ( NEET )
    1. lack of periclinal divisions in vascular cambium
    2. Production of more secondary xylem to inside and less secondary phloem outside
    3. Relatively less difference in the climate of the soil during different seasons
    4. unexposure of root to proper wet conditions
11.    In bean shaped guard cells cell wall away from and towards the stomatal pore are respectively
    1. Thick, Thin        2. Thin, Thick        3. Thin, thin        4. Thick, thick
12.    Identify the set of structures reported in Epidermal tissue system
    1. Epidermal cells, stomata, trichomes and hairs   
    2. Epidermal cells, stomata, vascular tissues
    3. Stomata, Trichomes, Stelar tissues            4. Epidermal cells, stomata, trichomes, cortical cells
13.    The following type of tissue is usually absent in roots
    1. Parenchyma        2. Meristem        3. Collenchyma        4. Sclerenchyma
14.    This is an example for primary meristem involved in secondary growth
    1. Apical meristem    2. Cork cambium
    3. Fascicular cambium of dicot stem        4. Intercalary meristem
15.    Dedifferentiation can be usually shown by
    1. pericycle of dicot root       
    2. pericycle of dicot stem   
    3. endodermis of dicot root       
    4. medulla of dicot stem
16.    Bark formed early in the season is called as
    1. Soft bark        2. Hard bark        3. Alburnum        4. Duramen
17.    Complementary cells are formed from
    1. Vascular cambium  2. Phellogen        3. Apical meristem      4. Intercalary meristem
18.    Ground tissue is present
    1. in the vascular bundles of dicot stem        2. in the vascular bundles of monocot stem
    3. in between xylem and phloem of radial vascular bundles       
    4. in leaf bundles
19.    Perforation plates are associated with
    1. vessels        2. tracheids        3. sieve cells        4. sieve tubes
20.    The main elements of conduction of water and mineral salts in Pteridophytes and
    Gymnosperms are
    1. Tracheae        2. Sieve cell        3. Tracheids        4. Sieve tube
21.    Primary xylem is developed from
    1. Cambium    2. Procambium       
    3. Interfascicular cambium       
    4. Cork cambium
22.    A nucleated living cell found in the angiospermic plant
    1. companion cells2. Mature sieve tube cell
    3. Tracheae        4. Tracheids
23.    Choose the mismatch        ( NEET )
    1. Libriform fiber-Simple pits in lignified walls
    2. Companion cell-sister cell of albuminous cell
    3. Sieve tube element- Unspecialized sieve areas on lateral walls
    4. Tyloses-obstruct the growth of pathogenic fungi
24.    Intrastelar secondary lateral meristem in dicot stem is
    1. Interfascicular cambium            2. Fascicular cambium
    3. Cork cambium    4. Absent
25.    Identify the incorrect statement regarding endodermis of roots
    1. It is the innermost part of cortex
    2. It prevents the entry of air from soil into stele
    3. It is single layered, barrel shaped cells with casparian bands
    4. It helps in leakage of water from stele into cortex
26.    The shape of xylem vessels in monocot stem
    1. Y-shaped        2. X-shaped        3. Long, tubular        4. S-shaped
27.    Anatomically dicot leaf differsfrom monocot leaf in having
    1. Collateral and closed vascular bundles
    2. Sclerenchymatous bundle sheath extensions
    3. More number of stomata on the abaxial surface than the adaxial surface
    4. undifferentiated mesophyll
28.    Cambial cells divide
    1. Vertically        2. Anticlinally        3. Tangentially        4. Obliquely
29.    Primary meristems are those which originate        1. Since birth from embryonal tissue        2. During secondary meristem
    3. By dedifferentiation    4. None of the above
30.    Impermeability is best seen in
    1. Cork cells        2. Sclerenchyma        3. Stone cells        4. all of these
31.    Parenchyma differs from meristematic cells in its
    1. Celll wall composition            2. Uneven thickenings in cell wall
    3. Having cytoplasm and nucleus        4. Larger size, well developed vacuole
32.    Centrifugal development of xylem is found in
    1. Stem            2. Root       
    3. Lateral root        4. None of these
33.    Cell wall is impermeable in
    1. Sclerenchyma
    2. Xylem tracheids and vessels   
    3. Cork cells        4. All of the above
34.    Guard cells differ from epidermal cells in having
    1. Specific shape    2. Chloroplast        3. More thickened inner wall   
    4. All of the above
35.    Conjoint collateral and open vascular bundles with xylem endarch occur in stem of
    1. Dracaena        2. Maize        3. Wheat        4. Helianthus
36.    Lateral meristem is
    1. Procambium and phelloderm       
    2. Interfascicular and phelloderm
    3. Phellogen and phelloderm            4. Phellogen and fascicular cambium
37.    Heart wood differsfrom sap wood in
    1. Presence of rays and fibres       
    2. Absence of vessels and parenchyma
    3. Having dead and non-conducting elements
    4. Being susceptible to pests and pathogens
38.    A : Xylem and phloem are complex tissues
    R : Permanent tissue is composed of mature cells
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
39.    A : There are intercellular spaces between the cells of meristmatic tissues
    R : Vacuoles are mostly larger in meristematic cells
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
40.    A : Primary meristems show little participation in the primary plant body formation
    R : Primary meristems originate from parenchyma
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
41.    A : Apical meristems originage from embryonic state of plants
    R : Apical meristems add length to plants
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase
    4. Both A are R wrong
42.    A : In grasses and cereals, intercalary meristems are present
    R : Intercalary meristems form permanent tissues
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
43.    A : Collenchyma is usually absent in secondary body of dicots        ( NEET )
    R : Collenchyma is a mechanical tissue
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
44.    A : Sieve plates are absent in gymnosperms        R : Companion cells are not found gymnosperms            ( NEET )
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
45.    A : Tracheids constitute main part of wood in gymnosperms
    R : Tracheids are absent in angiosperms
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
46.    A : Medullary rays are called pith rays in higher plants   
    R : Pith cells are found between the vascular bundles
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
47.    A : Root hairs arise from cells of the epiblema        R : The epiblema is also called piliferous layer
                    ( NEET )
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
48.    A : Monocot stem shows Atactostele            R : All seed plants have Eustele    ( NEET )
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
49.    A : Conjunctive tissue is parenchymatous        R : Conjunctive tissue forms vascular cambium
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
50.    A : Annual rings are not produced in secondary phleom
    R : Secondary phloem does not grow in thickness
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
51.    A : Both spring and autumn ring contributes equally to the growth ring   
    R : Both rings are formed half yearly
    1. Both A and R are true and R is the correct explanation of A
    2. Both A and R are true and R is not the correct explanation of A
    3. A is true but R is flase       
    4. Both A are R wrong
52.    A common structural feature of vessel elements and sieve tube elements is
    1. enucleate conditions       
    2. thick secondary walls
    3. Lignified lateral walls       
    4. presence of P-protein
53.    Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by ( NEET )
    1. absence of secondary phloem        2. presence of cortex
    3. position of protoxylem            4. absence of secondary xylem
54.    The grafting is not possible in monocots, because they
    1. have parallel venation  2. lack cambium
    3. are herbaceous
    4. have scattered vascular bundle
55.    Meristematic tissues include
    1. mature fruits nad leaf tips       
    2. stem and root apices, vascular cambium
    3. stem and root apices, cork cambium and mature fruits
    4. leaf tips, cork cambium and vascular cambium
56.    Match the following
    List-1                List-2
    1. bulliform cells    A. stomata
    2. guard cells        B. aerating pore
    3. lenticel        C. acessory cell
    4. subsidiary cell    D. isobilateral leaf
    The correct match is
    1. 1-D, 2-A, 3-B, 4-C   
    2. 1-A, 2-D, 3-B, 4-C
    3. 1-D, 2-B, 3-C, 4-A       
    4. 1-A, 2-B, 3-C, 4-D
57.    Between the bark and the wood in a woody stem, there is a layer of meristem called
    1. cork cambium    2. apical meristem
    3. vascular cambium
    4. the zone of cell division
58.    When phloem and cambium are present on both sides of xylem, the vascular bundle is called
    1. bicollateral        2. radial        3. concentric        4. collateral
59.    Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
    1. resins    2. suberin       
    3. lignin        4. tannins
60.    Which one of the following related to plant structure is correct
    1. Though cork lacks stomata, it can carry out transpiration
    2. Passage cells help in transfer of food from cortex to phloem
    3. Young sieve tube elements possess cytoplasm but no nuclei
    4. The shoot apical meristem has a quiescent centre

KEY
    1-10        3    4    4    2    1    4     3    2    3    3
    11-20        2    1    3    3    1    1    2    3    4    3
    21-30        2    2    2    1    4    3    3    3    1    1
    31-40        4    1    3    4    4    4    3    2    4    4
    41-50        2    2    3    2    3    1    2    3    2    3
    51-60        1    1    3    2    2    1    3    1    2    1

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