CBSE Questions for Class 11 Medical Biology Anatomy Of Flowering Plants Quiz 13 - MCQExams.com

Why is cambium considered as a lateral meristem?
  • Because it give rise to lateral branches
  • Because it increases the diameter of the plant stem.
  • Because it increases the length of the plant.
  • Because it increases the height and diameter of the plant.

Select the correct option regarding A' or 'B' given in the flow charts
1094689_695f9b5664f54e2ab85c0ea3d8232479.jpg
  • 'A' is cell and 'B' is tissue
  • 'A' is unicellular and B is multicellular
  • 'A' is tissue and B is cell
  • None of the above
Vascular cambium is completely secondary in origin in
  • Dicot stem
  • Monocot stem
  • Dicot root
  • Monocot root
Figure shows which type of vascular bundle?
1091969_1296aaedeeb2475e9cbc4fe924429283.jpg
  • Radial
  • Closed vascular bundle
  • Conjoint open
  • Conjoint closed
Which simple permanent tissue is formed of dead cells?
  • Collenchyma
  • Sclerenchyma
  • Aerechyma
  • Xylem
Tracheid's differ from vessels in/as?
  • Being dead & without protoplasm
  • Former is not found in gymnosperms
  • Being imperforated
  • Being water transporting element
Read the following statements and select the correct  option.
A. Damage to chordae tending of semilunar valves in aorta causes back flow of blood in left ventricle.
B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound
  • Both statements are correct
  • Only statement B is correct
  • Only statement A is correct
  • Both statements are incorrect.
The short lived meristem present between two permanent tissue
  • Apical meristems
  • Interfascicular cambium
  • Intercalary meristem
  • Lateral meristems
Ectopholic siphonostele is found in
  • Osmunda and Equisetum
  • Adiantum and Cucurbitaceae
  • Marsilea and Botrychium
  • Dicksonia and Maiden hair fern
A typical monocotyledonous root is characterized by 
  • Usually more than six xylem bundles
  • Large and well developed pith
  • No secondary growth
  • All of the above
Select the mismatched pair.
  • Collateral and open vascular bundles- Sunflower stem
  • Bicollateral vascular bundles - Maize stem
  • Concentric vascular bundles - Ferns
  • Radial vascular bundle - Maize root
Lateral roots are endogenous in origin as they develop from
  • Cortex
  • Endodermis
  • Pericycle
  • Vascular strands
A vessel is not similar to a tracheid in?
  • Being dead
  • Being lignified
  • Being multicelled
  • Providing mechanical support
Parenchyma cells filling the space between dermal and vascular tissues form ________.
  • Ground tissue
  • Epidermal tissue
  • Medulla
  • Vascular tissue
Vessel are found in 
  • All angiosperms and some gymnosperm
  • Most of angiosperms and few gymnosperms
  • All angiosprms, all gymnosperms and some pteridophyta
  • All pteridophyta
Polyarch vascular bundles generally occur in 
  • Monocot stem
  • Dicot stem
  • Dicot root
  • Monocot root
Sclerenchyma fibres are absent in
  • Protoxylem
  • Protophloem
  • Metaxylem
  • Metaphloem
Which of the following elements of xylem is living?
  • Trachea
  • Tracheids
  • parenchyma
  • fibres
Read the  following statements and choose the correct option. 
a) Pith is large and well developed in roots of monocot plants.
b) Bundle sheath is  presents in dicot stem.
c) Water containing cavities are present within vascular bundles of monocot stem.
  • Only (b) is incorrect
  • Only (a) is incorrect
  • Only (a) and (b) are correct
  • All (a), (b) and (c) are correct
All the elements, when mature, are dead except
  • Tracheids
  • Vessels
  • Xylem parenchyma
  • Xylem fibres
Meristem is characterized by
  • Isodiametric cells with cellulosic thin wall
  • Absence of intercellular space and vacuole
  • Absence of reserve food material and plastids
  • All of these
Monocotyledonous root differs from dicot root in which of the following internal features (a to d)?

a. Presence of parenchymatous pericycle
b. Absence of fewer xylem bundles
c. Presence of large and well-developed pith
d. Presence of parenchymatous cortex without intercellular spaces

Find out the correct option.
  • a, c, & d
  • b & d
  • b & c
  • a & d
The fallen stem in grasses gets erected by the help of
  • Vascular cambium
  • Interfascicular cambium
  • Apical meristem
  • Intercalary meristem
Read the following features and choose the correct option about anatomy of dicot and monocot stem.
(i) Collenchymatous hypodermis.
(ii) Vascular bundles are scattered.
(iii) Eustele.
(iv) Ground tissue is not differentiated.
(v) Pericycle absent
  • Dicot stem i,ii,iii ; Monocot stem iv,v
  • Dicot stem i,ii,v ; Monocot stem iii,iv
  • Dicot stem iii, v; Monocot stem i,ii,iv
  • Dicot stem i,iii ; Monocot stem ii, iv, v
In a large tree most metabolic energy is utilized by:
  • Cambium
  • Cork
  • Storage tissue
  • Root parenchyma
Aecessory buds are-
  • Axillary buds
  • Adventitious buds
  • Terminal buds
  • Not true buds
Identify the correct statement for monocotyledonous root
  • Pith is large and well developed
  • No secondary growth
  • Polyarch condition
  • All of the above
During differentiation of xylem.
  • End walls are lost in tracheid's
  • Loss of protoplasm occurs in vessels
  • Lignified thickening develop in tracheary elements
  • More than one option is correct
Which of the following vascular bundles are always open?
  • Radial
  • Collateral
  • Bicollateral
  • Concentric
Naphthalene acetic acid is applied on a apple tree. The tree will produce?
  • More dwarf shoots and more apples
  • More long branches and more apples
  • Long root for deep penetration within soil
  • Less side branches and more apical growth
Tracheids and vessel elements:-
  • Die before they become functional
  • Are important constituents of all part
  • Are found in the secondary plant body
  • Are without lignified cell wall
The living component of xylem tissue is
  • Xylem vessel
  • Xylem parenchyma
  • Xylem tracheid
  • Xylem fibre
Which of the following is a character of meristematic tissue ? 
  • Presence of prominent nucleus
  • presence of vacoules
  • presence of intercellular space
  • Metabolically less active
The number of xylem bundles in monocot roots are:
  • 1
  • 2
  • 4
  • 8
Mark the incorrect statement.
The cells of root apex and shoot apex _____.
  • Are poor in cytoplasmic content
  • Possess small and inconspicuous nuclei
  • Are with abundant plasmodesmatal connections
  • Possess cell wall which is always secondary in nature
The living component of xylem tissue is?
  • Xylem vessel
  • Xylem parenchyma
  • Xylem tracheid
  • Xylem fibre
Identify the given diagram and select the correct option?
1433986_63592d83d3d948b49b055fcfee37bdcd.PNG
  • Dicot root with well developed pith
  • Dicot root with radial vascular bundle
  • Monocot root with well developed pith
  • Monocot root with endarch xylem
Select an incorrect match.
  • Tracheid's - water conduction
  • Ray parenchyma - mechanical support
  • Vessels - water conduction
  • Xylem parenchyma - Food storage
Secondary meristem develops from?
  • Vascular cambium
  • Apical meristem
  • Permanent tissue
  • Secondary tissue
What is present around a vascular bundle of a monocot stem?
  • Pericycle
  • Endodermis
  • Pericycle & endodermis both
  • Bundle sheath
Gritness in pulp of fruit like sapota and guava is due to?
  • Parenchyma
  • Sclerenchyma
  • Collenchyma
  • Fibres
Identify the incorrect statement with respect to monocot stem.

(a) Hypodermis is made up of sclerenchyma
(b) Ground tissue is differentiated
(c) Vascular bundles which are situated towards the center are larger in size and less in number
(d) Each vascular bundle is conjoint, collateral and closed and xylem is endarch.
  • a, b and c
  • b, c and d
  • only b
  • b and c
Plants have evolved various defences to lessen the impact of predation by herbivores. Choose the correct option for the defence measures in the given plants. Where M-Morphological, C-Chemical, A-Anatomical, P-Physiological.

Acacia Cactus Calotropis
$$(1)$$PPM
$$(2)$$AMC
$$(3)$$PCC
$$(4)$$MMC
  • A
  • B
  • C
  • D
Tracheids are less efficient than vessels due to?
  • Absence of closed end walls
  • Uneven thickening
  • Casparian strips
  • Presence of tapering end walls
In a vascular bundle, if xylem vessels develop in a centripetal fashion, the xylem in likely to be?
  • Mesarch
  • Centrarch
  • Endarch
  • Exarch
Vascular bundle in which the protoxylem arranged at the center?
  • Endarch
  • Exarch
  • Mesarch
  • Diarch
The most active part dicot root with respect to growth is _______.
  • Endodermis
  • Pericyle
  • Conjunctive tissue
  • Cortex
Conduction of water and minerals is the main function of:
  • Stem
  • Phloem
  • Leaf
  • Xylem
Tracheid, vessel and sclereids are similar in that they all
  • Lack secondary walls
  • Conduct water and minerals
  • Function when dead
  • Have open ends
Xylem and phloem are present on the same radius, such a vascular bundle is called?
  • Radial
  • Bicollateral
  • Concentric
  • Conjoint
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