Please refer to Anatomy of Flowering Plants Class 11 Biology Important Questions with answers below. These solved questions for Chapter 6 Anatomy of Flowering Plants in NCERT Book for Class 11 Biology have been prepared based on the latest syllabus and examination guidelines issued by CBSE, NCERT, and KVS. Students should learn these solved problems properly as these will help them to get better marks in your class tests and examinations. You will also be able to understand how to write answers properly. Revise these questions and answers regularly. We have provided Notes for Class 11 Biology for all chapters in your textbooks.

Important Questions Class 11 Biology Chapter 6 Anatomy of Flowering Plants

Objective Type Questions

Question. A tissue is a group of cells which are
(a) similar in origin, but dissimilar in form and function.
(b) dissimilar in origin, form and function.
(c) dissimilar in origin, but similar in form and function.
(d) similar in origin, form and function.

Question. Which of following helps bamboo and grasses to elongate ?
(a) Apical meristems
(b) Lateral meristems
(c) Secondary meristems
(d) Intercalary meristems

Question. Cells of permanent tissues are specialized
(a) functionally.
(b) only structurally.
(c) both structurally and functionally.
(d) for mitosis.

Question. During the formation of leaves and elongation of stem, some cells ‘left behind’ from the shoot apical meristem, constitute the
(a) lateral meristem
(b) axillary bud
(c) cork cambium
(d) fascicular cambium

Question. A plant tissue when stained showed the presence of hemicellulose and pectin in cells wall of its cells. The tissue is called
(a) collenchyma
(b) sclerenchyma
(c) xylem
(d) meristem

Question. Sclerenchyma usually___________and_____________ protoplasts.
(a) live, without
(b) dead, with
(c) live, with
(d) dead, without

Question. Xylem functions as a conducting tissue for water and minerals from _________to the ______and__________.
(a) roots, stems, leaves
(b) stems, roots, leaves
(c) leaves, stems, roots
(d) leaves, stems, leaves

Question. Which one of the following have vessels as their characteristic feature?
(a) Angiosperms
(b) Gymnosperms
(c) Pteridophytes
(d) Bryophytes

Question. A vascular bundle in which the protoxylem is pointing to the periphery is called __________.
(a) endarch
(b) exarch
(c) radial
(d) closed

Question. Pericycle of roots produces
(a) mechanical support
(b) lateral roots
(c) vascular bundles
(d) adventitious buds

Question. Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
(a) presence of cortex.
(b) position of protoxylem.
(c) absence of secondary xylem.
(d) absence of secondary phloem.

Question. What is true about a monocot leaf ?
(a) Reticulate venation
(b) Absence of bulliform cells from epidermis
(c) Mesophyll not differentiated into palisade and spongy tissues
(d) Well differentiated mesophyll

Question. Heartwood differs from sapwood in:
(a) presence of rays and fibres
(b) absence of vessels and parenchyma
(c) having dead and non–conducting elements
(d) being susceptible to pests and pathogens

Question. Best method to determine the age of tree is to
(a) measure its diameter
(b) count number of leaves
(c) count number of annual rings at base stem
(d) number of branches

Question. Phellogen and phellem respectively denote
(a) cork and cork cambium,
(b) cork cambium and cork,
(c) secondary cortex and cork,
(d) cork and secondary cortex,

Question. Cork is formed from
(a) phellogen
(b) vascular cambium
(c) phloem
(d) xylem

Statement Type Questions

Question. Which of the following characteristic is correct about a monocot leaf?
(a) Having reticulate venation.
(b) Absence of bulliform cells.
(c) Mesophyll not differentiated into palisade and spongy tissues.
(d) Well differentiated mesophyll cells are present.

Question. Which one of the following option is correct about bulliform/motor cell ?
(a) It is seen in grasses.
(b) It is large-sized, thin-walled colourless, vacuolate cells on the adaxial surface.
(c) It helps in rolling of leaf to minimise water loss when it is flaccid.
(d) All of the above

Question. Which of the following statements is not correct for stomatal apparatus?
(a) Inner walls of guard cells are thick and in elastic.
(b) Guard cells invariably possess chloroplasts and mitochondria.
(c) Guard cells does not possess subsidiary cells.
(d) Stomata are involved in gaseous exchange.

Question. Which of the following statement is not correct about xylem?
(a) It is a conducting tissue for water and minerals from roots to the stem and leaves.
(b) It also provides mechanical strength to the plants parts.
(c) It is composed of four different kinds of elements, namely, tracheids, companion cells, xylem fibres and xylem parenchyma.
(d) Gymnosperms lack vessels in their xylem.

Question. Read the following statements and select the correct one(s).
(i) In flowering plants, tracheids and vessels are the main water transporting elements.
(ii) The presence of vessels is a characteristic feature of angiosperms.
(iii) Xylem fibres have highly thinned walls and their cell walls are made up of cellulose.
(iv) Xylem parenchyma store food materials in the form of starch or fat and other substances like tannins.
Which of the above statement(s) is/are correct?
(a) Only (i)
(b) Both (ii) and (iii)
(c) Both (iii) and (iv)
(d) (i), (ii) and (iv)

Question. Which of the following statement(s) is/are correct about the ground tissue system?
(i) All tissues except epidermis and vascular bundles constitute the ground tissue.
(ii) It consists of xylem and phloem.
(iii) In leaves, it consists of thin – walled chloroplast containing cells called mesophyll.
(a) Only (i)
(b) Both (i) and (iii)
(c) Both (ii) and (iii)
(d) All of these

Question. Which of the following statements are correct about phloem?
(i) Phloem transports food materials, usually from roots to the other parts of the plant.
(ii) It is composed of sieve tube elements, companion cells, phloem parenchyma and phloem fibres.
(iii) The companion cells are specialised parenchymatous cells which are closely associated with phloem
parenchyma.
(iv) The first formed primary phloem consists of narrow sieve tubes and referred to as protophloem and the later formed phloem has bigger sieve tubes and referred to as metaphloem.
(a) Both (i) and (iv)
(b) Both (ii) and (iii)
(c) Both (ii) and (iv)
(d) All of these

Question. Which of the following statement(s) is/are correct about dorsiventral (dicotyledonous) leaf ?
(i) The adaxial (upper surface) bears more stomata than the abaxial (lower surface) epidermis.
(ii) Mesophyll, which possesses chloroplasts and carry out photosynthesis, is made up of parenchyma.
(iii) Mesophyll is not differentiated into palisade and spongy parenchyma.
(a) Both (i) and (iii)
(b) Only (ii)
(c) Only (iii)
(d) All of these

Question. Read the following statements and answer the question.
(i) Cambium is very active and produces a large number of xylary elements having vessels with wider cavities.
(ii) It is also called early wood.
(iii) It is lighter in colour and has lower density.
Which type of wood is described by the above statements?
(a) Sap wood
(b) Heart wood
(c) Spring wood
(d) Autumn wood

Question. Which of the following statement(s) is/are correct ?
(i) Uneven thickening of cell wall is characteristic of sclerenchyma.
(ii) Periblem forms cortex of the stem and the root.
(iii) Tracheids are the chief water transporting elements in gymnosperms.
(iv) Companion cell is devoid of nucleus at maturity.
(v) The commercial cork is obtained from Quercus suber.
(a) (i) and (iv) only
(b) (ii) and (v) only
(c) (iii) and (iv) only
(d) (ii), (iii) and (v) only

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

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)

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

Assertion/Reason Type Questions

In the following questions, a statement of Assertion is followed by a statement of Reason.
(a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
(b) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
(c) If Assertion is true but Reason is false.
(d) If both Assertion and Reason are false.

Question. Assertion : Higher plants have meristematic regions for indefinite growth.
Reason : Higher plants have root and shoot apices.

Question. Assertion : Vessels are more efficient for water conduction as compared to tracheids.
Reason : Vessels are dead and lignified.

Question. Assertion : Long distance flow of photoassimilates in plants occurs through sieve tubes.
Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.

Matching Type Questions

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

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

Question. Match column-I with column-II and choose the correct option.

Column-I	Column-II
A. Spring wood or early wood	I. Lighter in colour
B. Autumn wood or late wood	II. High density
	III. Low density
	IV. Darker in colour
	V. Larger number of xylem elements
	VI. Vessels with wider cavity
	VII. Lesser number of xylem elements
	VIII. Vessels with small cavity

Which of the following combination is correct ?
(a) A – II, IV, VII, VIII; B – I, III, V, VI
(b) A – I, II, VII, VIII; B – III, IV, V, VI
(c) A – I, III, V, VI; B – II, IV, VII, VIII
(d) A – I, III, VII, VIII; B – II, IV, V, VI

Question. Match the terms given in column I with their features given in column II and choose the correct option.

Column-I (Terms)	Column-II (Features)
A. Fibres	I. Cells are living and thin walled with cellulosic cell wall, store food materials in the form of starch or fat
B. Sclereids	II. Main water conductive cells of the pteridophytes and the gymnosperms
C. Tracheids	III. Thick walled, elongated and pointed cells, generally occurring in groups
D. Vessels	IV. Long cylindrical tube like structure and cells are devoid of protoplasm. Characteristic feature of angiosperms
E. Xylem parenchyma	V. Reduced form of sclerenchyma cells with highly thickened lignified cellular walls that form small bundles of durable layers of tissue in most plants.

(a) A – I, B – II, C – III, D – IV, E – V
(b) A – III, B – V, C – II, D – IV, E – I
(c) A – III, B – I, C – V, D – II, E – IV
(d) A – V, B – IV, C – III, D – I, E – II