CBSE Class 11 Biology Anatomy of Flowering Plants MCQs Set E

Question: The quiescent centre in root meristem serves as a
a) Site for storage of food which is utilized during maturation
b) Reservoir of growth hormones
c) Reserve for replenishment of damaged cells of the meristem
d) Region for absorption of water
Answer: c

Question: Companion cells in plants are associated with
a) Vessels
b) Sperms
c) Sieve elements
d) Guard cells
Answer: c

Question: Lateral root in higher plants arise from
a) Cortex
b) Pericycle
c) Epidermis
d) Endodermis
Answer: b

Question: Cork cambium is a
a) Lateral meristem
b) Apical meristem
c) Intercalary meristem
d) Primitive meristem
Answer: a

Question: Tissue(s) present in an annual ring is/are
a) Secondary xylem and phloem
b) Primary xylem and phloem
c) Secondary xylem only
d) Primary phloem and secondary xylem
Answer: c

Question: Trees at sea do not have annual rings because
a) Soil is sandy
b) There is climatic variation
c) There is no marked climatic variation
d) There is enough moisture in the atmosphere
Answer: c

Question: A piece of wood having no vessels (trachea) must belong to
a) Teak
b) Mango
c) Pine
d) Palm
Answer: c

Question: Which of the following is enucleate at maturity?
a) Companion cell
b) Meristematic cell
c) Parenchyma
d) Sieve tube cell
Answer: d

Question: Aerenchyma is found in
a) Parenchyma
b) Xylem
c) Phloem
d) Sclerenchyma
Answer: a

Question: The length of different internodes in a culm of sugarcane is variable because of
a) Size of leaf lamina at the node below each internode
b) Intercalary meristem
c) Shoot apical meristem
d) Position of axillary buds
Answer: b

Question: Which of the following pair of match is not correct?
a) Pith – Large and well developed in monocotyledonous root
b) Root hairs – Helps in preventing water loss due to transpiration
c) Sieve tube elements – Its functions are controlled by the nucleus of companion cells
d) Stomatal apparatus – Consists of stomatal aperture, guard cells and surrounding subsidiary cells
Answer: a

Question: Grafting is successful in dicots but not in monocots because the dicots have
a) Vascular bundles arranged in a ring
b) Cambium for secondary growth
c) Vessels with elements arranged end to end
d) Cork cambium
Answer: b

Question: Which of the following statements is correct?
a) Lenticels occur in most woody trees
b) Sclerenchymatous cells are usually present in cortex
c) The vascular tissue system is divided into three main zones – cortex, pericycle and pith
d) The conjoint vascular bundles usually have the xylem located only on the outer side of the phloem
Answer: a

Question: Which one of the following statements pertaining to plant structure is correct?
a) Cork lacks stomata but lenticels carry out transpiration
b) Passage cells help in transfer of food from cortex to phloem
c) Sieve tube elements possess cytoplasm but no nuclei
d) The shoot apical meristem has a quiescent centre
Answer: c

Question: As secondary growth proceeds, in a dicot stem, the thickness of
a) Sapwood increases
b) Heartwood increases
c) Both sapwood and heartwood increase
d) Both sapwood and heartwood remain the same
Answer: c

Question: Sieve tubes are suited for translocation of food because they possess
a) Bordered pits
b) No ends walls
c) Broader lumen and perforated cross walls
d) No protoplasm
Answer: c

Question: Some vascular bundles are described as open because these
a) Are surrounded by pericycle but not endodermis
b) Are capable of producing secondary xylem and phloem
c) Possess conjunctive tissue between xylem and phloem
d) Are not surrounded by pericycle
Answer: b

Question: Why grafting is successful in dicots?
a) In dicots vascular bundles are arranged in a ring
b) Dicots have cambium for secondary growth
c) In dicots vessels with elements are arranged end to end
d) Cork cambium is present in dicots
Answer: b

Question: In which one of the following would you expect to find glyoxysomes?
a) Endosperm of wheat
b) Endosperm of castor
c) Palisade cells in leaf
d) Root hairs
Answer: b

Question: When we peel the skin of a potato tuber, we remove
a) Periderm
b) Epidermis
c) Cuticle
d) Leaves
Answer: a

Question: Cambium of root is an example of
a) Apical meristem
b) Intercalary meristem
c) Primary meristem
d) Secondary meristem
Answer: d

Question: Mesophyll is usually differentiated in
a) Monocot leaf
b) Isobilateral leaf
c) Dorsiventral leaf
d) Both ‘a’ and ‘b’
Answer: c

Question: The vessel elements of angiosperms differ from other elements of xylem in having
a) Simple pits on their radial walls
b) Bordered pits on their lateral walls
c) Simple and bordered pits on their end walls
d) Simple perforation on their end walls
Answer: d

Question: Porous wood contains
a) Vessels
b) Tracheids
c) Fibres
d) Parenchyma
Answer: a

Question: One of the primary functions of the ground tissue in a plant is
a) Photosynthesis
b) To protect the plant
c) To anchor the plant
d) Water and sugar conduction
Answer: a

Question: The trees growing in desert will
a) Show alternate rings of xylem and sclerenchyma
b) Have only conjunctive tissue and phloem is formed by the activity of cambium
c) Show distinct annual rings
d) Not show distinct annual rings
Answer: d

Question: Fascicular cambium is the cambium of vascular bundle of
a) Monocot stem
b) Dicot stem
c) Monocot leaf
d) Dicot leaf
Answer: b

Question: Passage cells are found in
a) Endodermis
b) Pericycle
c) Cortex
d) Epiblema
Answer: a

Question: Cycas stem shows
a) Porous wood
b) Manoxylic wood
c) Pycnoxylic wood
d) Ring porous wood
Answer: b

Question: Tissues are classified into two main groups, namely meristematic and permanent tissues on the basis of
a) Whether the cells being able to divide or not
b) Position of the cells
c) Whether they are living or dead
d) None of the above
Answer: a

Question: Endodermis is a part of
a) Cortex
b) Pericycle
c) Medulla
d) Epidermis
Answer: a

Question: Cambium is considered as a lateral meristem because
a) It gives rise to lateral branches
b) It causes increase in girth
c) It increases height and diameter of a plant
d) It adds bulk to a plant
Answer: b

Question: The tissue absent in vascular bundles of monocot stem is
a) Xylem
b) Phloem
c) Cambium
d) All of these
Answer: c

Question: A student observed a tissue providing mechanical support to young stem and petiole. Identify the tissue.
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Xylem parenchyma
Answer: b

Question: In a dicotyledonous stem, the sequence of tissues from the outside to the inside is
a) Phellem–Pericycle–Endodermis–Phloem
b) Phellem–Phloem–Endodermis–Pericycle
c) Phellem–Endodermis–Pericycle–Phloem
d) Pericycle–Phellem–Endodermis–Phloem
Answer: c

Question: Apical and intercalary meristems are primary meristems because
a) They occur in mature region of roots and shoots
b) They are made up of different kinds of tissues
c) They are involved in secondary growth
d) They appear early in plant life and form the primary body
Answer: d

Question: In a plant organ covered by periderm and without stomata, gaseous exchange takes place through
a) Aerenchyma
b) Trichomes
c) Pneumatophores
d) Lenticels
Answer: d

Question: In an experiment, how can a student ascertain whether a stem is monocot or dicot?
a) With the help of bulliform cells
b) With the help of casparian strips
c) With the help of vascular bundles
d) With the help of stomatal apparatus
Answer: c

Question: Which of the following are present in monocot root?
a) Conjoint, collateral, open polyarch vascular bundle
b) Exodermis, endarch, tetrarch closed vascular bundles
c) Suberized exodermis, casparian strip, passage cells, cambium
d) Suberized exodermis, polyarch xylem, pith
Answer: d

Question: Which of the following process helps the trichomes in preventing water loss?
a) Companion cells maintain pressure gradient in sieve tubes
b) Plants absorb water through roots and lose it via leaf pores
c) Cork cambium activity builds pressure on peripheral layers
d) None of the above
Answer: b

Question: Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
a) Resins
b) Suberin
c) Lignins
d) Tannins
Answer: b

Question: A common structural feature of vessel elements and sieve tube elements are
a) Pores on lateral walls
b) Presence of P-protein
c) Enucleate condition
d) Thick secondary walls
Answer: c

Question: In land plants, the guard cells differ from other epidermal cells in having
a) Cytoskeleton
b) Mitochondria
c) Endoplasmic reticulum
d) Chloroplasts
Answer: d

Question: Gymnosperms are also called soft wood spermatophytes because they lack
a) Cambium
b) Phloem fibres
c) Thick-walled tracheids
d) Xylem fibres
Answer: d

Question: In the sieve elements, which one of the following is the most likely function of P-proteins?
a) Deposition of callose on sieve plates
b) Providing energy for active translocation
c) Autolytic enzymes
d) Sealing mechanism on wounding
Answer: a

Question: Which one of the following statement is incorrect ?
(i) Epidermal cell has small amount of cytoplasm and a large vacuole.
(ii) Waxy cuticle layer is absent in roots.
(iii) Root hairs are unicellular, while stem hairs / trichomes are multicellular.
(iv) Trichomes may be branched or unbranched, soft or stiff and prevent transpiration.
(v) Guard cells are dumbell shaped in dicots and beanshaped in monocots (e.g. grass).
a) Only (i)
b) Only (iv)
c) Only (iii)
d) Only (v)
Answer: d

Question: Match column-I with column-II and choose the correct option.
Column -I                                               Column -II
A. Bulliform cells                         I. Initiation of lateral roots
B. Pericycle                                II. Root
C. Endarch xylem                     III. Grasses
D. Exarch xylem                       IV. Dicot leaf
E. Bundle sheath cells              V. Stem
a) A – III, B – V, C – IV, D – I, E – II
b) A – II, B – V, C – I, D – III, E – IV
c) A – II, B – IV, C – I, D – III, E – V
d) A – III, B – I, C – V, D – II, E – IV
Answer: d

Question: Which of the following statement(s) is/are not correct?
(i) Cork cambium is also called phellogen.
(ii) Cork is also called phellem.
(iii) Secondary cortex is also called periderm.
(iv) Cork cambium, cork and secondary cortex are collectively called phelloderm.
a) (iii) and (iv)
b) (i) and (ii)
c) (ii) and (iii)
d) (ii) and (iv)
Answer: a

Question: Which type of plant tissue is being described by the given statements?
(i) It consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits.
(ii) They are dead and without protoplasts.
(iii) On the basis of variation in form, structure, origin and development, it may be either fibres or sclereids.
(iv) It provides mechanical support to organs.
a) Parenchyma
b) Sclerenchyma
b) Collenchyma
d) Chlorenchyma
Answer: b

Question: Which of the following statements are correct ?
(i) Xylem transports water and minerals.
(ii) Gymnosperms lack sieve tubes and companion cells in phloem.
(iii) The first formed primary xylem is called metaxylem.
(iv) Phloem fibres (bast fibres) are made up of collenchymatous cells.
a) (i) and (iii)
b) (i) and (ii)
c) (iii) and (iv)
d) (i) and (iv)
Answer: b

Question: Match the elements of xylem given in column I with their character given in the column II and choose the correct option.
Column-I                                      Column-II
A. Xylem vessels                      I. Store food materials
B. Xylem tracheids                  II. Obliterated lumen
C. Xylem fibres                       III. Perforated plates
D. Xylem parenchyma            IV. Chisel-like ends
a) A – IV, B – III, C – II, D – I
b) A – III, B – II,C – I, D – IV
c) A – II, B – I, C – IV, D – III
d) A – III, B – IV, C – II, D – I
Answer: d

Question: Match the followings and choose the correct option
Column-I                          Column-II
A. Cuticle                        I. Guard cells
B. Bulliform cells            II. Outer layer
C. Stomata                    III. Waxy layer
D. Epidermis                 IV. Empty colourless cell
a) A – III, B – IV, C – I, D – II
b) A – I, B – II, C – III, D – IV
c) A – III, B – II, C – IV, D – I
d) A – III, B – II, C – I, D – IV
Answer: a

Question: Match the terms given in column I with their funciton given in column II and choose the correct option.
Column-I                                  Column-II
(Term)                                     (Functions)
A. Meristem                         I. Photosynthesis, storage
B. Parenchyma                   II. Mechanical support
C. Collenchyma                 III. Actively dividing cells
D. Sclerenchyma               IV. Stomata
E. Epidermal tissue            V. Sclereids
a) A – I, B – III, C – V, D – II, E – IV
b) A – III, B – I, C – II, D – V, E – IV
c) A – II, B – IV, C – V, D – I, E – III
d) A – V, B – IV, C – III, D – II, E – I
Answer: b

Question: Match the names of the structures given in column-I with the functions given in column-II, choose the answer which gives the correct combination of the two columns
Column-I                           Column-II
(Structure)                       (Function)
A. Stomata                  I. Protection of stem
B. Bark                       II. Plant movement
C. Cambium              III. Secondary growth
D. Cuticle                  IV. Transpiration
V. Prevent the loss of water
a) A – V, B – III, C – I, D – IV
b) A – I, B – IV, C – V, D – III
c) A – II, B – IV, C – I, D – III
d) A – IV, B – I, C – III, D – V
Answer: d