CBSE Class 11 Biology Anatomy of Flowering Plants MCQs Set 06

Question: Which one is correct about intercalary meristem?
a) It occurs in grasses and regenerates parts removed by grazing herbivores
b) It is a primary meristem
c) It occurs between mature tissues
d) All
Answer: d

Question: Secondary tissues are produced by all except
a) Phellogen
b) Interfascicular cambium
c) Fascicular cambium
d) Apical meristem
Answer: d

Question: Primary tissues of a plant
a) Add to the length of roots and shoots
b) Are found only in the seedling
c) Add to the diameter of existing roots and shoots
d) Are found only in the embryo
Answer: a

Question: Cells of permanent tissue are specialised
a) Functionally
b) For mitosis
c) Both structurally and functionally
d) Only structurally
Answer: c

Question: Grass stem elongates after initial growth due to
a) Intercalary meristem
b) Apical meristem
c) Secondary meristem
d) Lateral meristem
Answer: a

Question: Root apex is sub-terminal because it is
a) Covered with root hair
b) Covered with root cap
c) Under the soil
d) Covered with epidermis
Answer: b

Question: Which one is secondary lateral meristem?
a) Cork cambium
b) Intercalary
c) Interfascicular cambium
d) Both (a) and (c)
Answer: d

Question: The given characters belong to which tissue?
A. Thin cellulosic wall
B. Isodiametric cells
C. Intercellular spaces present/absent
D. Photosynthetic, storage or secretory
a) Collenchyma
b) Parenchyma
c) Sclerenchyma
d) Vascular tissue
Answer: b

Question: Root hairs are present in
a) Zone of elongation
b) Zone of cell division
c) Zone of maturation
d) Root cap
Answer: c

Question: Fibres and sclereids are types of
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Xylem
Answer: c

Question: Which statement is incorrect about sclereids?
a) Variously shaped
b) Highly thickened, lignified walls, narrow lumen
c) Found in nuts, seed coats and leaves
d) They are a type of parenchyma
Answer: d

Question: Xylem in angiosperms consists of how many types of elements?
a) 4
b) 3
c) 2
d) 1
Answer: a

Question: In each vascular bundle, the tissue nearest to the centre of the stem is
a) Fibres
b) Phloem
c) Vascular cambium
d) Xylem
Answer: d

Question: Unlike tracheids, vessel elements
a) Function when dead
b) Lose part or all of end walls
c) Are found primarily in angiosperms
d) Are spindle-shaped
Answer: c

Question: Tracheids and vessel elements
a) Die before they become functional
b) Are without lignified cell wall
c) Are present in all plant groups
d) Are found only in secondary plant body
Answer: a

Question: Xylem parenchyma stores
a) Fat
b) Starch
c) Tannins
d) All
Answer: d

Question: The living and non-lignified component of vascular bundle is/are
a) Wood parenchyma and sieve tube
b) Vessels and tracheids
c) Wood fibre and phloem
d) Vessels and phloem
Answer: a

Question: Heterogeneous tissues are
a) Parenchyma and sclerenchyma
b) Dermal layer and ground tissue
c) Xylem and phloem
d) Vascular and cork cambium
Answer: c

Question: Sieve tube is
a) Provided with porous septa
b) The main conducting element for food
c) Multicellular vessel-like structure
d) All of these
Answer: d

Question: Albuminous cells of gymnosperms are equivalent to
a) Sieve cells
b) Sieve tubes
c) Companion cells
d) Cork cambium
Answer: c

Question: Sieve tubes are best suited for translocation of solutes because
a) They are much broader than long
b) They possess no end walls
c) They have more pits
d) They possess interconnected lumen
Answer: a

Question: Which of the bast fibres is of greatest commercial value?
a) Jute
b) Flax
c) Hemp
d) All
Answer: d

Question: The primary function of epidermis is
a) Photosynthesis
b) Conduction of water and solute
c) Protection
d) Mechanical support
Answer: c

Question: Excessive loss of water is prevented by
a) Epidermis
b) Cortex
c) Endodermis
d) Xylem
Answer: a

Question: Stomata develop from
a) Dermal tissue
b) Ground tissue
c) Accessory tissue
d) Vascular tissue
Answer: a

Question: Ground tissue includes
a) Medullary ray
b) Cortex + pericycle
c) Pith
d) All
Answer: d

Question: Pit fields allow plasmodesmata to travel through
a) Both primary and secondary cell wall
b) Neither primary nor secondary cell wall
c) Primary cell wall
d) Secondary cell wall
Answer: a

Question: In the development of a root, the protoderm gives rise to the
a) Root hair
b) Endodermis
c) Pith
d) Cortex
Answer: a

Question: Which one is not a part of stele?
a) Vascular bundle
b) Pith
c) Cortex
d) Pericycle
Answer: c

Question: The innermost layer of cortex is called
a) Endodermis
b) Pericycle
c) Exodermis
d) Conjunctive tissue
Answer: a

Question: Monocot root differs from dicot root in having
a) Polyarch xylem bundles
b) Both (a) and (b)
c) Large and well-developed pith
d) Radial vascular bundle and exarch xylem
Answer: b

Question: In dorsiventral leaf, location of palisade tissue and phloem respectively is
a) Adaxial and abaxial
b) Abaxial and adaxial
c) Adaxial and adaxial
d) Abaxial and abaxial
Answer: a

Question: Which one is correct?
a) Stomata on lower surface in dorsiventral leaf
b) Protoxylem disintegrates to produce lacuna in monocot stem
c) Reticulate venation in dicots; parallel in monocots
d) All
Answer: d

Question: In dicot stem, lateral branch comes out from
a) Pericycle
b) Cortex
c) Epidermis
d) Pith
Answer: b

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

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

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

Question: The trees growing in desert
a) Will not show distinct annual rings
b) Show alternate xylem and sclerenchyma
c) Show distinct annual rings
d) Have only conjunctive tissue and phloem
Answer: a

Question: Apical and intercalary meristems are primary meristems because
a) They occur in mature regions
b) They appear early and form primary body
c) They are involved in secondary growth
d) They are made up of different tissues
Answer: b

Question: Wood having no vessels must belong to
a) Pine
b) Mango
c) Palm
d) Teak
Answer: a

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

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

Question: Tissues are classified into meristematic and permanent on basis of
a) Whether cells can divide
b) Position of cells
c) Whether cells are living or dead
d) None
Answer: a 

Question: In an experiment, a student can identify a stem as monocot or dicot with the help of
a) Bulliform cells
b) Casparian strips
c) Vascular bundles
d) Stomatal apparatus
Answer: c

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