CBSE Class 11 Biology Anatomy of Flowering Plants MCQs Set 03

Question: Organisation of stem apex into corpus and tunica is determined mainly by
a) planes of cell division
b) regions of meristematic activity
c) rate of cell growth
d) rate of shoot tip growth.
Answer: a

Question: Which meristem helps in increasing girth?
a) Lateral meristem
b) Intercalary meristem
c) Primary meristem
d) Apical meristem
Answer: a

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: Stomata in grass leaf are
a) dumb-bell shaped
b) kidney-shaped
c) rectangular
d) barrel-shaped.
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: Angular collenchyma occurs in
a) Cucurbita
b) Helianthus
c) Althaea
d) Salvia.
Answer: a

Question: Function of companion cells is
a) providing energy to sieve elements for active transport
b) providing water to phloem
c) loading of sucrose into sieve elements by passive transport
d) loading of sucrose into sieve elements.
Answer: d

Question: Tunica corpus theory is connected with
a) root apex
b) root cap
c) shoot apex
d) secondary growth
Answer: c

Question: Transport of food material in higher plants takes place through
a) companion cells
b) transfusion tissue
c) tracheids
d) sieve elements.
Answer: d

Question: Which of the following statements is not true for stomatal apparatus?
a) Guard cells invariably possess chloroplasts and mitochondria.
b) Guard cells are always surrounded by subsidiary cells.
c) Stomata are involved in gaseous exchange.
d) Inner wall of guard cells are thick.
Answer: b

Question: Which one of the following is not a lateral meristem?
a) Intrafascicular cambium
b) Interfascicular cambium
c) Phellogen
d) Intercalary meristem
Answer: d

Question: A common structural feature of vessel elements and sieve tube elements is
a) enucleate condition
b) thick secondary walls
c) pores on lateral walls
d) presence of P-protein.
Answer: a

Question: At maturity, which of the following is non-nucleated?
a) Palisade cell
b) Cortical cell
c) Sieve cell
d) Companion cell
Answer: c

Question: Chlorenchyma is known to develop in the
a) cytoplasm of Chlorella
b) mycelium of a green mould such as Aspergillus
c) spore capsule of a moss
d) pollen tube of Pinus.
Answer: c

Question: Vessels are found in
a) all angiosperms and some gymnosperm
b) most of angiosperms and few gymnosperms
c) all angiosperms, all gymnosperms and some pteridophyta
d) all pteridophyta.
Answer: b

Question: Regeneration of damaged growing grass following grazing is largely due to
a) lateral meristem
b) apical meristem
c) intercalary meristem
d) secondary meristem.
Answer: c

Question: Which of the following plant cells will show totipotency?
a) Sieve tubes
b) Xylem vessels
c) Meristem
d) Cork cells
Answer: c

Question: Phloem in gymnosperms lacks
a) both sieve tubes and companion cells
b) albuminous cells and sieve cells
c) sieve tubes only
d) companion cells only.
Answer: a

Question: Tracheids differ from other tracheary elements in
a) having Casparian strips
b) being imperforate
c) lacking nucleus
d) being lignified.
Answer: b

Question: Collenchyma occurs in the stem and petioles of
a) xerophytes
b) monocots
c) dicot herbs
d) hydrophytes
Answer: c

Question: Which of the following is not true about ‘sclereids’?
a) These are groups of living cells.
b) These are found in nut shells, guava pulp, pear.
c) These are also called stone cells.
d) These are form of sclerenchyma with fibres.
Answer: a

Question: Meristematic tissue responsible for increase in girth of tree trunk is
a) intercalary meristem
b) lateral meristem
c) phellogen
d) apical meristem.
Answer: b

Question: Bordered pits are found in
a) sieve cells
b) vessel wall
c) companion cells
d) sieve tube wall.
Answer: b

Question: Death of protoplasm is a pre-requisite for a vital function like
a) transport of sap
b) transport of food
c) absorption of water
d) gaseous exchange.
Answer: a

Question: An organised and differentiated cellular structure having cytoplasm but no nucleus is
a) vessels
b) xylem parenchyma
c) sieve tubes
d) tracheids.
Answer: c

Question: The chief water conducting elements of xylem in gymnosperms are
a) vessels
b) fibres
c) transfusion tissue
d) tracheids.
Answer: d

Question: Collenchyma occurs in
a) herbaceous climbers
b) woody climbers
c) climbing stems
d) water plants.
Answer: c

Question: Ground tissue includes
a) all tissues external to endodermis
b) all tissues except epidermis and vascular bundles
c) epidermis and cortex
d) all tissues internal to endodermis.
Answer: b

Question: Cork cambium and vascular cambium are
a) parts of secondary xylem and phloem
b) parts of pericycle
c) lateral meristem
d) apical meristem.
Answer: c

Question: Sieve tubes are suited for translocation of food because they possess
a) bordered pits
b) no end walls
c) broader lumen and perforated cross walls
d) no protoplasm.
Answer: c

Question: The apical meristem of the root is present
a) only in radicals
b) only in tap roots
c) only in adventitious roots
d) in all the roots.
Answer: d

Question: Companion cells are closely associated with
a) sieve elements
b) vessel elements
c) trichomes
d) guard cells.
Answer: a

Question: Specialised epidermal cells surrounding the guard cells are called
a) bulliform cells
b) lenticels
c) complementary cells
d) subsidiary cells.
Answer: d

Question: Vascular bundles in monocotyledons are considered closed because
a) there are no vessels with perforations
b) xylem is surrounded all around by phloem
c) a bundle sheath surrounds each bundle
d) cambium is absent.
Answer: d

Question: In barley stem vascular bundles are
a) closed and scattered
b) open and in a ring
c) closed and radial
d) open and scattered.
Answer: a

Question: Which of the following statements is true?
a) Vessels are multicellular with wide lumen.
b) Tracheids are multicellular with narrow lumen.
c) Vessels are unicellular with narrow lumen.
d) Tracheids are unicellular with wide lumen.
Answer: a

Question: Closed vascular bundles lack
a) ground tissue
b) conjunctive tissue
c) cambium
d) pith.
Answer: c

Question: The cells of the quiescent centre are characterised by
a) having dense cytoplasm and prominent nuclei
b) having light cytoplasm and small nuclei
c) dividing regularly to add to the corpus
d) dividing regularly to add to tunica.
Answer: b

Question: Some vascular bundles are described as open because these
a) are surrounded by pericycle but no 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: Axillary bud and terminal bud derived from the activity of
a) lateral meristem
b) intercalary meristem
c) apical meristem
d) parenchyma.
Answer: c

Question: A bicollateral vascular bundle is characterised by
a) phloem being sandwiched between xylem
b) transverse splitting of vascular bundle
c) longitudinal splitting of vascular bundle
d) xylem being sandwiched between phloem
Answer: d