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UniNest

NEET ]1[ Contd...

NEET Biology - Anatomy of Flowering Plants

Duration: 121 minutesTotal Marks: 484Questions: 121Negative Marking: -1

Instructions:

  1. Each question has four options (1), (2), (3), (4). Choose the most correct answer.
  2. Each correct answer carries 4 marks.
  3. Each wrong answer will deduct 1 marks.
  4. Unanswered questions will not be penalised.
1.Study of the internal structure and functional organisation of higher plants is called:
(1)Morphology
(2)Anatomy
(3)Histology of animals only
(4)Taxonomy
2.Choose the correct sequence of organisation in plants according to the chapter.
(1)Cell → Tissue → Organ
(2)Tissue → Cell → Organ
(3)Organ → Tissue → Cell
(4)Cell → Organ → Tissue
3.Which of the following is NOT one of the three tissue systems based on structure and location?
(1)Epidermal tissue system
(2)Ground/fundamental tissue system
(3)Vascular/conducting tissue system
(4)Meristematic tissue system
4.Match the tissue system with its alternate/common name: (a) Ground tissue system (b) Vascular tissue system (c) Epidermal tissue system.
(1)(a) Conducting, (b) Fundamental, (c) Covering
(2)(a) Fundamental, (b) Conducting, (c) Outermost covering
(3)(a) Protective only, (b) Storage only, (c) Conducting
(4)(a) Xylem, (b) Phloem, (c) Mesophyll
5.The epidermal tissue system comprises all the following EXCEPT:
(1)Epidermal cells
(2)Stomata
(3)Trichomes and hairs
(4)Vascular cambium
6.The epidermis is best described as the:
(1)Outermost layer of the primary plant body
(2)Innermost layer of the cortex
(3)Tissue between xylem and phloem
(4)Central portion of the stem
7.Which statement about the epidermis is correct?
(1)It is generally many-layered and loosely arranged.
(2)It consists of elongated, compact cells forming a continuous layer.
(3)It is absent from roots because roots lack cuticle.
(4)It is mainly sclerenchymatous.
8.Identify the incorrect statement.
(1)Cuticle is often waxy and thick.
(2)Cuticle prevents loss of water.
(3)Cuticle is absent in roots.
(4)Cuticle is the major conducting tissue.
9.Assertion (A): Cuticle is absent in roots.

Reason (R): Roots mainly absorb water and minerals from soil through root hairs.
(1)Both A and R are true, and R explains A.
(2)Both A and R are true, but R does not explain A.
(3)A is true, R is false.
(4)A is false, R is true.
10.Stomata primarily regulate:
(1)Secondary growth and cambium formation
(2)Transpiration and gaseous exchange
(3)Food storage and secretion of enzymes
(4)Mechanical strength of hypodermis
11.In a typical dicot stomatal apparatus, the two cells enclosing the stomatal pore are:
(1)Subsidiary cells
(2)Guard cells
(3)Trichomes
(4)Bulliform cells
12.In grasses, guard cells are generally:
(1)Bean-shaped
(2)Dumb-bell shaped
(3)Spindle-shaped with no chloroplasts
(4)Barrel-shaped
13.Choose the correct wall-thickening pattern in guard cells.
(1)Outer wall towards pore thick; inner wall away from pore thin
(2)Outer wall away from pore thin; inner wall towards pore highly thickened
(3)Both outer and inner walls equally thick
(4)Both walls are suberised as Casparian strips
14.Which of the following epidermal cells possess chloroplasts and control stomatal opening and closing?
(1)Guard cells
(2)Subsidiary cells
(3)Root hairs
(4)Trichomes only
15.Which component is NOT part of the stomatal apparatus as defined in the PDF?
(1)Stomatal aperture
(2)Guard cells
(3)Surrounding subsidiary cells
(4)Casparian strip
16.Root hairs are:
(1)Multicellular secretory hairs of stem epidermis
(2)Unicellular elongations of epidermal cells
(3)Sclerenchymatous projections of pericycle
(4)Modified bulliform cells
17.Epidermal hairs on the stem are called:
(1)Root hairs
(2)Medullary rays
(3)Trichomes
(4)Subsidiary cells
18.Which statement about trichomes in the shoot system is correct?
(1)They are usually unicellular and only absorb minerals.
(2)They are usually multicellular and may be branched, unbranched, soft, stiff or secretory.
(3)They are always dumb-bell shaped.
(4)They form the innermost layer of cortex.
19.The main function of trichomes mentioned in the chapter is to:
(1)Initiate lateral roots
(2)Reduce water loss due to transpiration
(3)Differentiate into xylem
(4)Form Casparian strips
20.Ground tissue includes:
(1)All tissues except epidermis and vascular bundles
(2)Only xylem and phloem
(3)Only the outermost covering
(4)Only stomata and trichomes
21.Which tissue is NOT listed as a simple tissue of the ground tissue system?
(1)Parenchyma
(2)Collenchyma
(3)Sclerenchyma
(4)Phloem
22.Parenchymatous cells of primary stems and roots are usually present in which set?
(1)Cortex, pericycle, pith and medullary rays
(2)Epiblema, guard cells, stomatal aperture and cuticle
(3)Xylem vessels, tracheids, sieve tubes and companion cells
(4)Only bulliform cells and bundle sheath
23.In leaves, ground tissue containing thin-walled chloroplast-bearing cells is called:
(1)Stele
(2)Mesophyll
(3)Pericycle
(4)Epiblema
24.The vascular tissue system consists mainly of:
(1)Parenchyma and collenchyma
(2)Xylem and phloem
(3)Cuticle and stomata
(4)Epidermis and trichomes
25.Xylem and phloem together constitute:
(1)Ground tissue
(2)Vascular bundles
(3)Stomatal apparatus
(4)Bulliform system
26.Open vascular bundles are called open because they:
(1)Have stomata open throughout the day
(2)Possess cambium and can form secondary xylem and phloem
(3)Are surrounded by bulliform cells
(4)Have phloem parenchyma absent
27.Closed vascular bundles are typical of monocotyledons because they:
(1)Contain a large cambium ring
(2)Lack cambium and do not form secondary tissues
(3)Have only phloem but no xylem
(4)Are always radial
28.Radial vascular arrangement means:
(1)Xylem and phloem are on the same radius with phloem outside xylem
(2)Xylem and phloem alternate along different radii
(3)Xylem surrounds phloem completely
(4)Phloem is absent
29.Conjoint vascular bundles are common in:
(1)Roots only
(2)Stems and leaves
(3)Root hairs only
(4)Endodermal cells only
30.In a usual conjoint vascular bundle described in the PDF, phloem is located:
(1)On the outer side of xylem
(2)On the inner side of xylem only
(3)Alternating with xylem along different radii
(4)Inside the xylem cavity
31.For studying tissue organisation of roots, stems and leaves, the chapter recommends studying transverse sections of:
(1)Immature seed zones only
(2)Mature zones of these organs
(3)Only flowers
(4)Only fruits
32.The dicot root example mentioned in the chapter is:
(1)Maize root
(2)Sunflower root
(3)Grass root
(4)Lily root
33.The outermost layer of a dicot root is:
(1)Endodermis
(2)Pericycle
(3)Epiblema
(4)Pith
34.In T.S. of dicot root, root hairs arise by protrusion of:
(1)Pericycle cells
(2)Epiblema cells
(3)Endodermal cells
(4)Conjunctive tissue
35.The cortex of dicot root is made of:
(1)Several layers of thin-walled parenchyma with intercellular spaces
(2)A single layer of barrel-shaped cells without spaces
(3)Sclerenchymatous bundle sheath only
(4)Only conjunctive tissue
36.The innermost layer of the cortex in dicot root is:
(1)Epiblema
(2)Endodermis
(3)Phloem
(4)Pith
37.Which combination correctly describes root endodermis?
(1)Many-layered; oval cells; large intercellular spaces
(2)Single layer; barrel-shaped cells; no intercellular spaces
(3)Sclerenchymatous patches above phloem
(4)Parenchyma between xylem and phloem
38.Casparian strips in endodermal cells are made by deposition of:
(1)Cutin only on outer wall
(2)Suberin on tangential and radial walls
(3)Cellulose on guard cells
(4)Lignin in stomatal pore
39.In dicot root, pericycle lies:
(1)Outside epiblema
(2)Next to endodermis
(3)Inside stomatal pore
(4)Between upper and lower epidermis
40.Lateral roots and vascular cambium during secondary growth initiate from:
(1)Epiblema
(2)Endodermis only
(3)Pericycle
(4)Pith only
41.Compared with monocot root, the pith in dicot root is generally:
(1)Large and well-developed
(2)Small or inconspicuous
(3)Absent from all roots
(4)Replaced by bulliform cells
42.Parenchymatous cells present between xylem and phloem in a root are called:
(1)Medullary rays
(2)Conjunctive tissue
(3)Starch sheath
(4)Bulliform tissue
43.A typical dicot root described in the chapter usually has how many xylem and phloem patches?
(1)Two to four
(2)More than six
(3)Only one
(4)Eight to twelve
44.Stele includes all tissues on the inner side of:
(1)Epiblema
(2)Cortex
(3)Endodermis
(4)Cuticle
45.Which set of tissues is common to monocot root anatomy as described?
(1)Epidermis, cortex, endodermis, pericycle, vascular bundles and pith
(2)Only epidermis and trichomes
(3)Only mesophyll and stomatal apparatus
(4)Hypodermis, medullary rays and leaf veins only
46.A monocot root is usually polyarch, meaning it has:
(1)Two to four xylem bundles
(2)More than six xylem bundles
(3)Only one xylem bundle
(4)No xylem bundles
47.Which statement correctly compares pith in roots?
(1)Dicot root has large pith; monocot root has small pith
(2)Monocot root has large well-developed pith; dicot root has small or inconspicuous pith
(3)Both always lack pith
(4)Pith is a part of epidermal tissue
48.Monocotyledonous roots generally:
(1)Show secondary growth due to cambium ring
(2)Do not undergo secondary growth
(3)Form medullary rays in a ring
(4)Have stomata on both surfaces
49.Choose the correct pair.
(1)Dicot root — polyarch xylem; Monocot root — 2 to 4 patches
(2)Dicot root — small pith; Monocot root — large pith
(3)Dicot root — no pericycle; Monocot root — no endodermis
(4)Dicot root — bulliform cells; Monocot root — palisade parenchyma
50.In a young dicotyledonous stem, the outermost protective layer is:
(1)Pith
(2)Epidermis
(3)Medullary ray
(4)Pericycle
51.The epidermis of a typical young dicot stem may have:
(1)Cuticle, trichomes and a few stomata
(2)Casparian strips and no cuticle
(3)Bulliform cells only
(4)Only root hairs
52.In dicot stem, cortex is formed by cells arranged between:
(1)Epidermis and pericycle
(2)Pericycle and pith only
(3)Xylem and phloem only
(4)Upper and lower epidermis
53.The cortex of dicot stem has how many sub-zones?
(1)Two
(2)Three
(3)Four
(4)More than six
54.The outer hypodermis of dicot stem is made of:
(1)Collenchymatous cells
(2)Sclerenchymatous bundle sheath
(3)Chloroplast-containing mesophyll
(4)Guard cells
55.The collenchymatous hypodermis in young dicot stem mainly provides:
(1)Gaseous exchange
(2)Mechanical strength
(3)Secondary xylem
(4)Stomatal movement
56.Cortical layers below hypodermis of dicot stem consist of:
(1)Rounded thin-walled parenchyma with conspicuous intercellular spaces
(2)Barrel-shaped cells without any spaces
(3)Only closed vascular bundles
(4)Only dumb-bell guard cells
57.The endodermis of dicot stem is also called:
(1)Bundle sheath
(2)Starch sheath
(3)Casparian layer
(4)Bulliform sheath
58.In dicot stem, pericycle occurs as:
(1)A continuous epidermal layer with stomata
(2)Semilunar sclerenchymatous patches inner to endodermis and above phloem
(3)Parenchyma between xylem and phloem
(4)Large empty colourless cells along veins
59.Medullary rays in dicot stem are:
(1)Radially placed parenchymatous cells between vascular bundles
(2)Dumb-bell shaped guard cells
(3)Suberin bands in endodermis
(4)Water-containing cavities within bundles
60.Ring arrangement of vascular bundles is characteristic of:
(1)Dicot stem
(2)Monocot stem
(3)Isobilateral leaf
(4)Root hairs
61.Each vascular bundle of dicot stem is:
(1)Radial, closed and exarch
(2)Conjoint, open and endarch
(3)Conjoint, closed and polyarch
(4)Scattered, closed and surrounded by bulliform cells
62.The central portion of dicot stem is occupied by:
(1)Pith made of rounded parenchyma with large intercellular spaces
(2)Epiblema with root hairs
(3)Scattered vascular bundles only
(4)Bulliform cells
63.The hypodermis of monocot stem is:
(1)Collenchymatous
(2)Sclerenchymatous
(3)Epidermal only
(4)Mesophyll-like
64.Vascular bundles in monocot stem are generally:
(1)Arranged in a ring
(2)Scattered
(3)Absent
(4)Only in midrib
65.In a monocot stem T.S., each vascular bundle is surrounded by:
(1)Parenchymatous cortex only
(2)Sclerenchymatous bundle sheath
(3)Bulliform cells
(4)Subsidiary cells
66.Monocot stem has a large conspicuous ground tissue that is mainly:
(1)Parenchymatous
(2)Collenchymatous only
(3)Guard-cell tissue
(4)Palisade tissue
67.Monocot stem vascular bundles are:
(1)Conjoint and closed
(2)Conjoint and open
(3)Radial and open
(4)Absent
68.Which statement is correct for vascular bundle size in monocot stem?
(1)Peripheral bundles are generally larger than central ones.
(2)Peripheral bundles are generally smaller than central ones.
(3)All bundles are absent at the periphery.
(4)Only one bundle is present.
69.Identify the statement that is correct for monocot stem.
(1)Phloem parenchyma is absent.
(2)Cambium is present in every bundle.
(3)Vascular bundles are arranged in a ring.
(4)Hypodermis is collenchymatous.
70.Water-containing cavities are found within the vascular bundles of:
(1)Monocot stem
(2)Dicot stem only
(3)Dorsiventral leaf only
(4)Dicot root epiblema
71.A T.S. shows scattered conjoint closed vascular bundles, sclerenchymatous bundle sheath and absent phloem parenchyma. Identify it.
(1)Dicot root
(2)Dicot stem
(3)Monocot stem
(4)Dorsiventral leaf
72.A vertical section of a dorsiventral leaf through lamina shows:
(1)Epiblema, cortex and pith
(2)Epidermis, mesophyll and vascular system
(3)Hypodermis, pericycle and stele
(4)Stomata, trichomes and root hairs only
73.In a dorsiventral leaf, the upper surface is called:
(1)Abaxial epidermis
(2)Adaxial epidermis
(3)Epiblema
(4)Pericycle
74.In dorsiventral leaf, stomata are generally:
(1)More on abaxial epidermis than adaxial epidermis
(2)More on adaxial epidermis than abaxial epidermis
(3)Absent from both surfaces
(4)Only on vascular bundles
75.The tissue between upper and lower epidermis of a leaf is called:
(1)Stele
(2)Mesophyll
(3)Epiblema
(4)Conjunctive tissue
76.Mesophyll cells are:
(1)Sclerenchymatous cells without chloroplasts
(2)Parenchymatous cells with chloroplasts that carry out photosynthesis
(3)Endodermal cells with suberin strips
(4)Epidermal cells modified into root hairs
77.In dorsiventral leaf, mesophyll is differentiated into:
(1)Palisade and spongy parenchyma
(2)Xylem and phloem only
(3)Epiblema and pericycle
(4)Bulliform and subsidiary cells
78.Palisade parenchyma is:
(1)Abaxially placed and loosely arranged
(2)Adaxially placed with elongated cells arranged vertically and parallel
(3)Present only in monocot roots
(4)Made of large empty colourless cells
79.Spongy parenchyma in dorsiventral leaf is:
(1)Oval/round, loosely arranged, below palisade and extends to lower epidermis
(2)Elongated, tightly packed and only adaxial
(3)Single layer of barrel cells without spaces
(4)Sclerenchymatous patches above phloem
80.Numerous large spaces and air cavities are especially associated with:
(1)Spongy parenchyma
(2)Palisade parenchyma only
(3)Epiblema
(4)Pericycle
81.In leaves, vascular bundles can be seen in:
(1)Veins and midrib
(2)Root hairs only
(3)Bulliform cells only
(4)Stomatal pore only
82.The size of vascular bundles in a leaf depends on:
(1)Size of veins
(2)Number of root hairs
(3)Thickness of cuticle only
(4)Number of guard-cell chloroplasts
83.Variation in thickness of veins is associated with reticulate venation of:
(1)Dicot leaves
(2)Monocot leaves only
(3)Roots
(4)Stems only
84.Leaf vascular bundles are surrounded by:
(1)Thick-walled bundle sheath cells
(2)Subsidiary cells only
(3)Cuticle only
(4)Root hairs
85.An isobilateral leaf is generally associated with:
(1)Monocotyledonous plants
(2)Dicotyledonous roots
(3)Dicotyledonous stems only
(4)Secondary growth in dicots
86.In an isobilateral leaf, stomata are present:
(1)Only on abaxial epidermis
(2)Only on adaxial epidermis
(3)On both epidermal surfaces
(4)Only in vascular bundles
87.Which statement is incorrect for an isobilateral leaf?
(1)Stomata occur on both surfaces.
(2)Mesophyll is not differentiated into palisade and spongy parenchyma.
(3)It has characteristic differences from dorsiventral leaf.
(4)Palisade parenchyma is distinctly adaxial and spongy parenchyma is distinctly abaxial.
88.Bulliform cells are modified:
(1)Adaxial epidermal cells along veins in grasses
(2)Abaxial root hair cells in dicots
(3)Pericycle cells of roots
(4)Phloem parenchyma cells
89.Bulliform cells are described as:
(1)Small, green and photosynthetic
(2)Large, empty and colourless
(3)Thick-walled bundle sheath cells
(4)Bean-shaped guard cells
90.When bulliform cells have absorbed water and are turgid, the leaf surface is:
(1)Exposed
(2)Curled inward
(3)Converted into root hairs
(4)Covered by Casparian strips
91.During water stress, flaccid bulliform cells cause leaves to:
(1)Curl inward to minimise water loss
(2)Open stomata permanently
(3)Form cambium ring
(4)Produce root hairs
92.Parallel venation in monocot leaves is reflected in:
(1)Near similar sizes of vascular bundles except in main veins
(2)Highly variable vein thickness as in reticulate venation
(3)Absence of all vascular bundles
(4)Presence of only one midrib bundle
93.Assertion (A): Dicot stem vascular bundles are open.

Reason (R): Cambium is present between phloem and xylem in dicotyledonous stems.
(1)Both A and R are true, and R explains A.
(2)Both A and R are true, but R does not explain A.
(3)A is true, R is false.
(4)A is false, R is true.
94.Assertion (A): Monocot vascular bundles are called closed.

Reason (R): They lack cambium and do not form secondary tissues.
(1)Both A and R are true, and R explains A.
(2)Both A and R are true, but R does not explain A.
(3)A is true, R is false.
(4)A is false, R is true.
95.Which identification is correct?
(1)Ring vascular bundles + open + endarch = Monocot stem
(2)Scattered vascular bundles + closed + bundle sheath = Monocot stem
(3)Polyarch xylem + large pith = Dicot root
(4)Palisade/spongy absent + stomata both surfaces = Dicot leaf
96.Select the correct statement pair.
(1)Dicot root: epiblema outermost; Dicot stem: epidermis outermost protective layer
(2)Dicot root: bulliform cells; Dicot stem: mesophyll
(3)Monocot root: two to four xylem patches; Dicot root: polyarch
(4)Monocot stem: ring arrangement; Dicot stem: scattered bundles
97.Which pair best separates dorsiventral and isobilateral leaves?
(1)Dorsiventral: stomata both surfaces and undifferentiated mesophyll; Isobilateral: more abaxial stomata and palisade/spongy differentiation
(2)Dorsiventral: more abaxial stomata and differentiated mesophyll; Isobilateral: stomata both surfaces and undifferentiated mesophyll
(3)Dorsiventral: no cuticle; Isobilateral: only roots
(4)Dorsiventral: scattered bundles; Isobilateral: ring bundles
98.Which statement is incorrect?
(1)Root hairs are unicellular epidermal elongations.
(2)Shoot trichomes are usually multicellular.
(3)Bulliform cells are large, empty and colourless.
(4)Guard cells of grasses are bean-shaped.
99.Match the term with the correct description: (a) Conjunctive tissue (b) Starch sheath (c) Medullary rays (d) Stele.
(1)(a) Root parenchyma between xylem and phloem; (b) Dicot stem endodermis; (c) Radial parenchyma between bundles; (d) Tissues inside endodermis
(2)(a) Epidermal appendage; (b) Cuticle; (c) Guard cell; (d) Mesophyll
(3)(a) Bulliform cell; (b) Trichome; (c) Epiblema; (d) Stoma
(4)(a) Xylem only; (b) Phloem only; (c) Cortex only; (d) Epidermis only
100.Which of the following functions is NOT listed as a main function of tissues in the summary?
(1)Assimilation and storage of food
(2)Transport of water, minerals and photosynthates
(3)Mechanical support
(4)Production of animal hormones
101.Plant tissues are broadly classified into:
(1)Meristematic and permanent
(2)Radial and conjoint only
(3)Adaxial and abaxial only
(4)Epiblema and endodermis only
102.According to the summary, ground tissue forms the main bulk of the plant and is divided into:
(1)Cortex, pericycle and pith
(2)Xylem, phloem and cambium
(3)Epidermis, stomata and trichomes
(4)Palisade, spongy and guard cells
103.Vascular bundles differ mainly based on:
(1)Presence of cambium and location of xylem and phloem
(2)Shape of root hairs only
(3)Number of chloroplasts in guard cells only
(4)Colour of cuticle
104.Monocotyledonous and dicotyledonous plants differ in the vascular bundles by:
(1)Type, number and location
(2)Only colour
(3)Only chemical nature of cuticle
(4)Only stomatal pore size
105.Secondary growth occurs in most:
(1)Dicotyledonous roots and stems
(2)Monocotyledonous roots only
(3)Isobilateral leaves only
(4)Epidermal hairs only
106.Consider the statements: I. Root hairs are unicellular. II. Shoot trichomes are usually multicellular. III. Guard cells lack chloroplasts. IV. Stomatal apparatus includes guard cells. Which are correct?
(1)I, II and IV only
(2)I and III only
(3)II, III and IV only
(4)All four
107.Choose the correct set for dicot root: I. Epiblema outermost. II. Endodermis has Casparian strips. III. Pith large and well-developed. IV. Usually two to four xylem/phloem patches.
(1)I, II and IV only
(2)I and III only
(3)II and III only
(4)All four
108.Choose the correct statements for monocot stem: I. Vascular bundles scattered. II. Phloem parenchyma absent. III. Hypodermis collenchymatous. IV. Vascular bundles closed.
(1)I, II and IV only
(2)II and III only
(3)I and III only
(4)All four
109.For a dorsiventral leaf, select the correct statements: I. Mesophyll has palisade and spongy parenchyma. II. Abaxial epidermis generally has more stomata. III. Mesophyll lacks chloroplasts. IV. Spongy parenchyma has air spaces.
(1)I, II and IV only
(2)I and III only
(3)II and III only
(4)All four
110.For isobilateral leaf, select the correct statements: I. Stomata occur on both surfaces. II. Mesophyll is undifferentiated. III. Bulliform cells occur in grasses on adaxial epidermis. IV. Reticulate venation causes highly unequal vein thickness.
(1)I, II and III only
(2)I and IV only
(3)II and IV only
(4)All four
111.A section shows epidermis with cuticle, cortex with collenchymatous hypodermis, endodermis as starch sheath, semilunar sclerenchymatous pericycle and ringed vascular bundles. It is:
(1)Dicot stem
(2)Monocot stem
(3)Monocot root
(4)Isobilateral leaf
112.A section shows endodermis with Casparian strips, pericycle next to endodermis, polyarch xylem and large well-developed pith. It is most likely:
(1)Dicot root
(2)Monocot root
(3)Dicot stem
(4)Dorsiventral leaf
113.A leaf section has stomata on both surfaces, undifferentiated mesophyll and bulliform cells. Identify it.
(1)Dorsiventral dicot leaf
(2)Isobilateral monocot leaf
(3)Dicot root
(4)Dicot stem
114.Which is the wrong root statement?
(1)Epiblema is outermost in dicot root.
(2)Pericycle initiates lateral roots.
(3)Casparian strips occur in endodermal walls.
(4)Bulliform cells occur in root cortex.
115.Which is the wrong stem statement?
(1)Dicot stem vascular bundles are arranged in a ring.
(2)Monocot stem vascular bundles are scattered.
(3)Dicot stem pericycle is semilunar sclerenchymatous patches.
(4)Monocot stem vascular bundles are open.
116.Which is the wrong leaf statement?
(1)Dorsiventral leaf has differentiated mesophyll.
(2)Isobilateral leaf has stomata on both surfaces.
(3)Bulliform cells help minimise water loss by inward curling under water stress.
(4)Dorsiventral leaf mesophyll is absent between upper and lower epidermis.
117.Vascular bundles translocate:
(1)Only oxygen gas
(2)Water, minerals and food material
(3)Only starch grains
(4)Only cutin and suberin
118.Which pair is correct?
(1)Radial — stems/leaves; Conjoint — roots
(2)Radial — xylem and phloem alternate on different radii; Conjoint — xylem and phloem on same radius
(3)Radial — cambium absent; Conjoint — no xylem
(4)Radial — phloem only; Conjoint — xylem only
119.Which term is correctly matched?
(1)Epiblema — outermost root layer
(2)Adaxial epidermis — lower leaf surface
(3)Abaxial epidermis — upper leaf surface
(4)Bulliform cell — root hair
120.Epidermal cells are parenchymatous and generally have:
(1)Small cytoplasm lining the cell wall and a large vacuole
(2)No vacuole and a thick lignified wall
(3)Only suberin deposition on all walls
(4)No continuous layer
121.Which option correctly matches plant group with vascular bundle feature?
(1)Dicot stem — cambium present/open; Monocot — cambium absent/closed
(2)Dicot stem — cambium absent/closed; Monocot — cambium present/open
(3)Both dicot and monocot stems always open
(4)Both dicot and monocot stems always radial

Answer Key

12
21
34
42
54
61
72
84
91
102
112
122
132
141
154
162
173
182
192
201
214
221
232
242
252
262
272
282
292
301
312
322
333
342
351
362
372
382
392
403
412
422
431
443
451
462
472
482
492
502
511
521
532
541
552
561
572
582
591
601
612
621
632
642
652
661
671
682
691
701
713
722
732
741
752
762
771
782
791
801
811
821
831
841
851
863
874
881
892
901
911
921
931
941
952
961
972
984
991
1004
1011
1021
1031
1041
1051
1061
1071
1081
1091
1101
1111
1122
1132
1144
1154
1164
1172
1182
1191
1201
1211