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

Besides phellem, phellogen, root periderm comprises of
  • Secondary cortex
  • Phelloderm
  • Bark
  • More than one option is correct
After two or three years of the secondary growth, the cortex is dicot root?
  • Remains intact
  • Is completely sloughed away
  • Is largely lost
  • Is converted into cork
Which of these types of cells is most likely to divide?
  • Meristem
  • Parenchyma
  • Xylem
  • Epidermis
Between the bark and the wood in a woody stem, there is a layer of meristem called:
  • Zone of cell division
  • Vascular cambium
  • Cork cambium
  • Both B and C
Choose the correct answer from the alternatives given.
Meristematic activity is seen maximum in the:
  • shoot
  • root hair
  • bud
  • leaf
The term meristem was given by:
  • C.Nageli
  • Hanstein
  • Strasburger
  • N.Grew
Match the items in column I with those in column II:

Column IColumn II
(a) Xylem(i) Semi-permeable
(b) Phloem(ii) Permeable
(c) Cell membrane(iii) Downward flow of sap
(d) Root pressure(iv) Upward flow of water
(e) Cell wall(v) Guttation
  • a)- (iv); (b)- (iii); (c)- (i); (d)- (v); (e)- (ii)
  • a) - (ii) ; b) - (i); c) - (v); d) - (iii) ; e) - (iv)
  • a) - (i); b) - (iii); c) - (iv) ; d) - (v); e) - (ii)
  • a) - (iv); b) - (i); c) - (iii); d) - (v); e) - (ii)
Choose the correct answers from the alternatives given.
The dark coloured dead wood present in the central region of the old tree is
  • Spring wood
  • Heartwood
  • Sapwood
  • Cambium
State whether the following statements are true or false.
In a five year-old stem the oldest layer of secondary xylem is situated just outside the primary xylem.
  • True
  • False
Water containing Lysigenous cavity is present within the vascular bundles.
  • Monocot stem
  • Dicot stem
  • Monocot root
  • Dicot root
Stele is made up of (in dicot root) :- 
  • Pericycle
  • Vascular bundle
  • Pith
  • 1, 2 and 3
Select the incorrect pair out of the following.
Type of tissue -Function
(A)Parenchyma - Storage, Photosynthesis
(B) Sclerenchyma- Mechanical strength
(C) Xylem - Ascent of sap
(D) Phloem - Conduction of water and minerals
  • A
  • B
  • C
  • D
The axillary bud is constituted by the cells 'left behind' from
  • root apical meristem
  • shoot apical meristem
  • intercalary meristem
  • lateral meristem
Sclereids are present in
  • fruit walls of nuts
  • grit of guava and pear
  • seed coats of legumes
  • all of these
The stele found in monocot is:
  • Haplostele
  • Atactostele
  • Dictyostele
  • Actinostele
Pericycle in roots is never thick and sclerenchymatous because 
  • it does not act as mechanical tissue in roots
  • it gives rise to root hairs
  • it is place o f origin of lateral roots
  • it gives rise both to root hairs and root branches
Which of the following conditions of xylem is present in both monocot and dicot stems?
  • Endarch
  • Polyarch
  • Mesarch
  • Exarch
Casparian strips occurs in 
  • Cortex
  • Epidermis
  • Endodermis
  • Pericycle
If the dicot stem is stained for starch, the most intense colouration would develop in
  • epiblema
  • phloem
  • endodermis
  • pith
Select the mismatched pair out of the following

(A) Radial vascular bundle -Xylem and phloem on different radii
(B) Bicollateral vascular bundle - Phloem present on both sides of xylem
(C) Amphivasal vascular bundle - Phloem surrounds xylem
(D) Conjoint vascular bundle - Xylem and phloem on same radii
  • A
  • B
  • C
  • D
Radial vascular bundles characteristically occur in
  • Monocot and dicot stems
  • Monocot and dicot leaves
  • Monocot and dicot roots
  • All of these
Polyarch vascular bundles generally occur in
  • Monocot stem
  • Dicot stem
  • Dicot root
  • Monocot root
A common structural feature of vessel elements and sieve tube elements is
  • Enucleate condition
  • Thick secondary walls
  • Pores on lateral walls
  • Presence of P-protein
Select the correct option:
Transverse section of a part of a typical monocotyledonous root has been shown in the given figure. Identify the different parts (from A to I) and select the correct option.

886216_2ca1e17625d745629417ad7746c2ae5b.png
  • A-Root hair, B-Epiblema, C-Cortex, D-Endodermis, E-Pericycle, F-Pith, G-Phloem, H-Metaxylem, I-Protoxylem
  • A-Root hair, B-Epiblema, C-Cortex, D-Pericycle, E-Endodermis, F-Pith, G-Phloem, H-Metaxylem, I-Protoxylem
  • A-Root hari, B-Epiblema, C-Cortex, D-Endodermis, E-Pericycle, F-Pith, G-Phloem, H-Metaxylem, I-Metaxylem
  • A-Root hair, B-Cortex, C-Epiblema, D-Pericycle, E-Endodermis, F-Passage cell, G-Protoxylem, H-Phloem, I-Metaxylem
A diagram of T.S. of dicot root is given. Select the option which correctly labels A,B,C,D and E.

886197_2d896b297bac48d586e2c078442a312e.png
  • A-Protoxylem, B-Metaxylem, C-Phloem, D-Pericycle, E-Endodermis
  • A-Metaxylem, B-Protoxylem, C-Phloem, D-Percyicle, E-Endodermis
  • A-Protoxylem, B-Metaxylem, C-Phloem, D-Endodermis, E-Pericycle
  • A-Metaxylem, B-Protoxylem, C-Phloem, D-Endodermis, E-Pericycle
In ________ vascular bundle, a strip of vascular cambium is present in between the xylem and phloem.
  • Open
  • Closed
  • Endarch
  • Exarch
Which of the following tissue systems constitutes bulk of the plant body?
  • Epidermal tissue system
  • Ground tissue system
  • Vascular tissue system
  • Both (a) and (c)
Casparian strips are the bands of thickenings present on _____ walls of endodermis.
  • Radial
  • Tangential
  • Central
  • Both (a) and (b)
Select the correct option:
Identify the types of vascular bundle in the figures (i) and (ii) and select the correct option.
(A) Conjoint collateral - Conjoint bicollateral
(B) Conjoint bicollateral - Conjoint collateral
(C) Conjoint collateral closed -  Conjoint collateral open
(D) Conjoint collateral open -Conjoint collateral closed

886190_7226685c8fa5490292f5fca60dbe29b1.png
  • A
  • B
  • C
  • D
Following table summarises the differences between a monocot root and a dicot root.
CharactersMonocot rootDicot root
(i)Vascular bundlePolyarch i.e., more than $$6$$ vascular bundlesDiarch to hexarch i.e., $$2-6$$ vascular bundles
(ii)CambiumAbsentPresent, so secondary growth occurs
(iii)PithPoorly developedWell developed large pith
(iv)Activity of pericycleGives rise to secondary roots and cork cambiumGives rise to lateral roots only
Identify the incorrect differences and select the correct option.
  • (i) and (iii)
  • (i) and (iv)
  • (iii) and (iv)
  • (ii) and (iii)
Read the following statements :
(i). In monocot root, a large number of vascular bundles are arranged in the form of a ______ around the central _______
(ii). Due to the presence of ______, the endodermal cells do not allow wall to wall movement of substances between cortex and pericycle, in a primary dicot root.
(iii). The epidermis of stem of sunflower bears several unbranched _______ hair.
(iv). The central portion of a dicot stem is usually occupied by ______ comprising of thin-walled parenchymatous cells
Select the option that correctly fills the blanks in any two of them.
  • (i) ring, pith; (ii) hypodermis
  • (ii) Casparian strips; (iii) unicellular
  • (i) ring, cortex; (iv) vascular bundles
  • (iii) multicellular; (iv) pith
A typical monocotyledonous root is characterised by -
  • Usually more than six xylem bundles
  • Large and well developed pith
  • No secondary growth
  • All of these
Mineral nutrients absorbed by roots, move to leaves through
  • Xylem
  • Phloem
  • Sieve tube
  • Companion cell
Which plant part possesses polyarch condition of vascular bundles with a well developed pith?
  • Dicot root
  • Monocot root
  • Dicot stem
  • Monocot stem
Hypodermis is _______ in sunflower stem and _________ in maize stem.
  • Parenchymatous, Collenchymatous
  • Collenchymatous, Sclerenchymatous
  • Sclerenchymatous, Collenchymatous
  • Sclerechymatous, Parenchymatous
Select the correct option:
Read the following statements and select the correct option.
Statement 1: Anatomically, all the tissues present on the inner side of endodermis such as pericycle, vascular bundles and pith constitute the stele.
Statement 2: Eustele is the stele in which vascular bundles are arranged in the form of a ring as present in dicot stems,
  • Both statements $$1$$ and $$2$$ are correct
  • Statements $$1$$ is correct but statement $$2$$ is incorrect
  • Statement $$1$$ is incorrect but statement $$2$$ is correct
  • Both statements $$1$$ and $$2$$ are incorrect
Vascular bundle is enclosed within a well developed sclerenchymatous sheath in
  • Monocot stem
  • Dicot stem
  • Monocot root
  • Dicot root
Well developed pith is found in
  • Monocot root and monocot stem
  • Monocot stem and dicot root
  • Monocot root and dicot stem
  • Dicot root and dicot stem
Vascular cambium and cork cambium are ______________.
  • lateral meristems
  • intercalary meristems
  • primary meristems
  • apical meristems.
Lysigenous cavity in monocot stem vascular bundles develops by the dissolution of
  • protoxylem
  • metaxylem
  • phloem
  • ground tissue
Which of the following statements is incorrect?
  • In a dicot stem, the pericycle is usually multiplayered
  • Wood is the common name used for secondary xylem
  • Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube element
  • Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchange

Identify P, Q, R, S and T in the given T.S. of dicot stem showing secondary growth and select the correct option

887073_5ad5f3aa5e1d4ed0ab44a863a0203c39.png
  • P-Primary phloem, Q-Primary xylem, R-Vascular cambium, S-Secondary xylem, T-Secondary phloem
  • P-Secondary xylem, Q-Primary xylem, R-Secondary phloem, S-Primary phloem, T-Vascular cambium
  • P-Primary xylem, Q-Secondary xylem, R-Vascular cambium, S-Secondary phloem, T-Primary phloem
  • P-Primary xylem, Q-Secondary xylem, R-Vascular cambium, S-Primary phloem, T-Secondary phloem
Read the following statements and select the correct option.

Statement 1: Annual rings are distinct in plants growing in temperate regions
Statement 2: In temperate regions, the climatic conditions are not uniform through the year
  • Both statements $$1$$ and $$2$$ are correct
  • Statements $$1$$ is correct but statements $$2$$ is incorrect
  • Statement $$1$$ is incorrect but statement $$2$$ is correct
  • Both statements $$1$$ and $$2$$ are incorrect
Select the incorrect statement regarding the anatomy of a typical monocotyledonous stem
  • Phloem parenchyma is absent.
  • Vascular bundles are scattered, conjoint, collateral and closed
  • Each vascular bundle is surrounded by a bundle sheath.
  • Ground tissue is differentiated into cortex, endodermis, pericycle and pith
Select the mismatched pair.
  • Collateral and open vascular - Sunflower stem bundles
  • Bicollateral vascular bundles - Maize stem
  • Concentric vascular bundles - Ferns
  • Radial vascular bundles - Maize root
Phellogen cuts off derivatives on the inner side to form _______ and on the outer side to form ________.
  • Cork, Secondary cortex
  • Secondary cortex, Cork
  • Cork cambium, Cork
  • Cork cambium, Secondary cortex
Y-shaped arrangement of xylem vessels is found in
  • Monocot stem
  • Dicot stem
  • Monocot root
  • Dicot root
Refer to the given figure which represents a section of vascular bundle as seen in T.S. of a monocot stem and select the option that correctly labels A,B,C and D.
887010_68da20cea6074ec4aa737f3cbf97eabf.png
  • A-Protoxylem vessel, B-Metaxylem vessel, C-Protoxylem cavity, D-Phloem
  • A-Protoxylem vessel, B-Metaxylem vessel, C-Metaxylem cavity, D-Phloem
  • A-Metaxylem vessel, B-Protoxylem vessel, C-Protoxylem cavity, D-Phloem
  • A-Metaxylem vessel, B-Protoxylem vessel, C-Protoxylem cavity, D-Sclerenchyma
Bicollateral vascular bundles are found in
  • Helianthus
  • Zea mays
  • Cucurbita
  • Dracaena
Match the following and choose the correct option from below.
A. Secondary meristem  (i) Guard cells
B. Tracheids         (ii) Single layer
C. Stomata(iii) Cork
D. Epidermis(iv) Tubular dead cells
  • A-(iii), B-(iv), C-(i), D-(ii)
  • A-(i), B-(ii), C-(iii), D-(iv)
  • A-(iii), B-(ii), C-(iv), D-(i)
  • A-(iii), B-(ii), C-(i), D-(iv)
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