CBSE Questions for Class 11 Medical Biology Anatomy Of Flowering Plants Quiz 12 - MCQExams.com

In conifers fibres are likely to be absent in:
  • Secondary phloem
  • Secondary xylem
  • Primary phloem
  • Leaves
Secondary growth usually does not occur in
  • Stems and roots of dicots
  • Stems and roots of gymnosperms
  • Stems and roots of monocots
  • Both (b) and (c)
Select the correct option:
Given are a few peculiar parts/structures found in plants Cucurbita stem, potato tuber, walnut shell, jute fibres.
Identify the tissue responsible for the distinguishing feature in each part respectively and select the correct option
  • Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Phloem
  • Collenchymatous hypodermis, Sclerenchyma,Parenchyma, Phloem
  • Parenchymatous hypodermis, Parenchyma, Sclerenchyma, Xylem
  • Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Xylem
Identify the given figure and select the correct labels for A,B and C

887173_76262fbec9f74e5285fdc07117816117.png
  • A-Callose, B-Xylem parenchyma, C-Xylem vessel
  • A-Callose, B-Phloem parenchyma, C-Phloem vessel
  • A-Tylosis, B-Xylem parenchyma, C-Xylem vessel
  • A-Tylosis, B-Phloem parenchyma, C-Phloem vessel
A conjoint and open vascular bundle will be observed in the transverse section of
  • monocot root
  • monocot stem
  • dicot root
  • dicot stem
The persisting embryonic tissue in the plant body is called?
  • Permanent tissues
  • Parenchyma
  • Meristem
  • Xylem
A vessel less piece of stem possessing prominent sieve tubes would belong to
  • Pinus
  • Eucalyptus
  • Grass
  • Trochodendron
Sclerenchymatic tissues are dead and have lignified thickened walls.
  • True
  • False
The type of vascular bundles shown in the figure is commonly found in
942867_02a7b4b910ad4becb5e7bca7cd61d475.jpg
  • Stems
  • Roots
  • Leaves
  • Both A and B
Which one of the following is a complex, non-carbohydrate polymer found in cell walls: Its function is to provide stiffness to the cell as in xylem vessels and bark fibres. 
  • Opsonin
  • Saponin
  • Lignin
  • Plant Polypeptide
In a dicotyledonous stem, the sequence of tissues from the outside to the inside is
  • Phellem, pericycle, endodermis, phloem
  • Phellem, phloem, endodermis, pericycle
  • Phellem, phloem, pericycle, phloem
  • Pericycle, phellem, endodermis, phloem
Fibres and sclereids are the types of:
  • Parenchyma
  • Collenchyma
  • Sclerenchyma
  • Xylem
Conducting cells called ________ elements are the part of xylem where water and minerals are transported.
  • Tracheary
  • Vascular
  • Vessel
  • Phloem
Sclerenchyma fibres are absent in:
  • Protoxylem
  • Protophloem
  • Metaxylem
  • None of the above
Axillary bud develops into which of the following part of the plant?
  • Fruit
  • Leaf
  • Branch
  • Root
Which among the following statements is true about vascular bundles in the young monocot stem?
  • Collateral open
  • Bicollateral open
  • Collateral closed
  • Bicollateral closed.
Ground tissue includes 
  • Cortex and pericycle
  • Pith
  • Medullary ray
  • All of the above
Interfascicular cambia originate from cells of 
  • Medullary ray
  • Cortex
  • Endodermis
  • Fascicular cambia
How many tissues are present within dicot root?
  • $$5$$
  • $$6$$
  • $$3$$
  • $$12$$
In dicot stem, cork cambium develops in 
  • Epidermal region
  • Cortical region
  • Stelar region
  • Vascular region
On the basis of location and function, how many types of the tissue system are found in vascular plants?
  • $$2$$
  • $$3$$
  • $$4$$
  • $$5$$
Which one is false about monocot stem?
I. Vascular bundles is scattered, cojoint, close, surrounded by sclerenchymatous bundle sheath and cavity.
II. Hypodermis is scelerenchymatous.
III. Peripheral vascular bundles is smaller than centrally placed ones.
IV. Ground tissue is differentiated into cortex, pericycle, pith, etc.
V. Homogeneous parenchymatous ground.
  • I, III, IV
  • III, IV
  • IV
  • V
In root-system transition region the vascular bundles are 
  • Radial
  • Conjoint
  • Collateral
  • None
Which of the following statements are the functions of a medullary ray in plants?
  • Storage of food
  • Secondary growth
  • Both of the above
  • None of these
When the vascular cambium is present between the xylem and phloem, the vascular bundle is called
  • Closed
  • Open
  • Endarch
  • Exarch
How many of the following plants given below possess open (X) and closed vascular bundles (Y) respectively?
Brassica, Tulipa, Capsicum, Gloriosa, Nicotiana, Aloe, Cicer, Asparagus, Petunia, Colchicum, Sesbania, Zea.
  • X = 6, Y = 6
  • X = 4, Y = 8
  • X = 5, Y = 7
  • X = 9, Y = 3
 A tissue whose cells have very thick cell wall is
  • Parenchyma
  • Aerenchyma
  • Sclerenchyma
  • Both A and B
Pits are found in the walls of:
  • Parenchyma 
  • Sclerenchyma
  • Collenchyma
  • Both A and C
Which tissue is responsible for secondary growth in the plants?
  • Vascular cambium
  • Xylem
  • Phloem
  • Cork
To get a carpet like grass, lawns are mowed regularly. This is done to
  • Remove the shoot apical meristem
  • Remove the axillary buds
  • Accelerate the growth of terminal bud
  • Both B and C
Physiological function of a vessel is
  • Conduction of food
  • Mechanical support
  • Conduction of water and minerals
  • Assimilation of food
Which of the following is a primary meristem?
  • Intra fascicular cambium
  • Cork cambium
  • Vascular cambium in roots
  • None of the above
Lignified spindle shaped primitive conducting elements are
  • Tracheids
  • Vessels
  • Fibres & Scelereids
  • Sieve cells
Cells having lignified walls are present in
  • Tracheary elements
  • Sieve elements
  • Sclereids
  • A and C
The number of growth rings (sum of the rings of spring wood and autumn wood) in the year 2000 is found to beWhat will be the number of annual rings in 2018?
  • 38
  • 8
  • 28
  • 18
Vessels differ from tracheids in presence of
  • Lignified walls
  • Protoplasm
  • Perforations in end walls
  • Nucleus
Radial vascular bundle is found in
  • Dicot stem only
  • Both dicot stem and monocot stem
  • Both dicot root and monocot root
  • Monocot root only
Xylem vessels become nonfunctional due to the development of
  • Secondary lignified walls
  • Balloon like outgrowths
  • Perforation plates
  • Bordered pits
Vascular bundles in which phloem is found on both sides of xylem are called
  • Amphicribal
  • Radial
  • Bicollateral
  • Collateral
The nature of pericycle above the phloem in dicot stem is 
  • Parenchymatous
  • Sclerenchymatous
  • Collecnchymatous
  • Chlorenchymatous
Bast fibres are:
  • Scelerenchyma fibres
  • Phloem fibres
  • Libriform fibres
  • Fibre tracheids
Which of the following are water transporting elements in flowering plants?
  • Tracheids only
  • Vessels only
  • Tracheids and vessels
  • Either tracheids or vessels (not both)
Which tissue of the dicot root is involved in the formation of vascular cambium?
  • Pericyle part above primary phloem
  • Whole pericycle
  • Thich walled parenchymatous cell of pith
  • Portion of pericycle above the protoxylem
Choose the incorrect statement.
  • Permanent tissues having all cells similar in structure and function are called simple tissue.
  • Complex tissue has different types of cells performing different functions altogether.
  • Secondary meristem is lateral meristem.
  • The cells of permanent tissues divide further.
Which one of the following is a nucleate cell?
  • Sieve tube
  • Companion cells
  • Medullary rays
  • All of the above
Cork cambium is a meristematic tissue that arises as a result of dedifferentiation of ________ in dicot roots.
  • Pericycle cells
  • Epidermal cells
  • Endodermal cells
  • Lenticels
In a monocot stem, the vascular bundles are?
  • Arranged in a ring
  • Arranged alternatively
  • Present inside endodermis
  • Scattered in ground tissue
Ploem fibre (Bast fibre) are generally absent in 
  • Dicot
  • Primary Phloem
  • Secondary Phleom
  • Both (2) and (3)
Mark the odd one w.r.t T.S. of a plant's part
1099652_5f4812c429fa438287e48b7a366e51cd.png
  • Vascular bundles are arranged in ring
  • Epidermis is covered by a thin layer of cuticle
  • The cells of endodermis have a deposition of water-impermeable, waxy material
  • Pericycle contains both sclerenchyma and parenchyma
Close type of vascular bundle lacks?
  • Xylem
  • Sclerenchyma
  • Phloem
  • Cambium
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