Exam Question for Class 11 Biology Chapter 6 Anatomy of Flowering Plants
Objective Type Questions
Question. Apical, intercalary and lateral meristems are differentiated on the basis of
(a) origin
(b) function
(c) position
(d) development
Answer
C
Question. Which meristem helps in increasing girth?
(a) Lateral meristem
(b) Intercalary meristem
(c) Primary meristem
(d) Apical meristem
Answer
A
Question. The apical meristem of the root is present
(a) in all the roots.
(b) only in radicals.
(c) only in tap roots.
(d) only in adventitious roots.
Answer
A
Question. Which of the following is responsible for the formation of an embryonic shoot called axillary bud?
(a) Lateral meristem
(b) Apical meristem
(c) Intercalary meristem
(d) Both (b) and (c)
Answer
C
Question. Various functions like photosynthesis, storage, excretion performed by _____________.
(a) sclerenchyma
(b) parenchyma
(c) collenchyma
(d) aerenchyma
Answer
B
Question. The __________ occurs in layers below the epidermis in dicotyledonous plants.
(a) parenchyma
(b) sclerenchyma
(c) collenchyma
(d) aerenchyma
Answer
C
Question. Bast fibres are made up of _____________cells.
(a) sclerenchymatous
(b) chlorenchymatous
(c) parenchymatous
(d) aerenchymatous
Answer
A
Question. An organised and differentiated cellular structure having cytoplasm but no nucleus is called _________.
(a) vessels
(b) xylem parenchyma
(c) sieve tubes
(d) tracheids
Answer
C
Question. In dicot root
(a) vascular bundles are scattered and with cambium
(b) vascular bundles are arranged in a ring and have cambium
(c) xylem and phloem radially arranged
(d) xylem is always endarch
Answer
C
Question. In stems, the protoxylem lies towards the _____________ and the metaxylem lies towards the ____________ of the organ.
(a) centre; periphery
(b) periphery; centre
(c) periphery; periphery
(d) centre; centre
Answer
A
Question. Monocot leaves possess
(a) intercalary meristem
(b) lateral meristem
(c) apical meristem
(d) mass meristem
Answer
A
Question. Lignin is the important constituent in the cell wall of
(a) phloem
(b) parenchyma
(c) xylem
(d) cambium
Answer
C
Question. How does autumn wood differ from spring wood ?
(a) Broad vessels & tracheids
(b) Narrow vessels & tracheids
(c) Red colour of xylem
(d) Cambium
Answer
B
Question. Cork cambium and vascular cambium are
(a) the parts of secondary xylem and phloem.
(b) the parts of pericycle.
(c) lateral meristems.
(d) apical meristems.
Answer
C
Question. A narrow layer of thin walled cells found between phloem/ bark and wood of a dicot is
(a) cork cambium
(b) vascular cambium
(c) endodermis
(d) both (a) & (c)
Answer
B
Question. Main function of lenticel is
(a) transpiration
(b) guttation
(c) gaseous exchange
(d) both (a) & (c)
Answer
A
Statement Type Questions
Question. Which is not correct about sclereids?
(a) These are parenchyma cells with thickened lignified walls.
(b) These are elongated and flexible with tapered ends.
(c) These are commonly found in the shells of nuts and in the pulp of guava, pear, etc.
(d) These are also called stone cells.
Answer
A
Question. All the following statements regarding sieve tube elements are correct except that
(a) their end walls have perforated sieve plates which become impregnated with lignin at maturity.
(b) they possess peripheral cytoplasm as well as a large vacuole.
(c) distinct proteinaceous inclusions, the P-proteins are seen evenly distributed throughout the lumen.
(d) long, slender, tube-like structures arranged in longitudinal series.
Answer
A
Question. Which of the following statement is correct regarding simple permanent tissue ?
(a) The collenchyma occurs in layers below the epidermis in monocotyledonous plants.
(b) Sclerenchyma cells are usually dead and without protoplasts.
(c) Xylem parenchyma cells are living and thin walled and their cell walls are made up of lignin.
(d) The companion cells are specialized sclerenchymatous cells.
Answer
B
Question. Which of the following statement(s) is/are correct about epidermal tissue system?
(a) It forms the outer-most covering of the whole plant body and comprises epidermal cells, stomata and the epidermal appendages – the trichomes and hairs.
(b) Epidermal cells are parenchymatous with a small amount of cytoplasm lining the cell wall and a large vacuole.
(c) Epidermis is often covered with a waxy thick layer called the cuticle which prevents the loss of water.
(d) All of the above
Answer
D
Question. Read the following statements and answer the questions.
(i) It is made up of elongated, tapering cylindrical cells
which have dense cytoplasm and nucleus.
(ii) The cell wall is composed of cellulose and has pits through which plasmodesmatal connections exist between the cells.
(iii) It is absent in most of the monocotyledons.
Which part of plant tissue is being described by the above statements?
(a) Sieve tube elements
(b) Companion cells
(c) Phloem parenchyma
(d) Phloem fibres
Answer
C
Question. Read the following statements and answer the question.
(i) They are present on the stem as epidermal hairs.
(ii) They are usually multicellular.
(iii) They may be branched or unbranched and soft or stiff.
(iv) They help in preventing water loss due to transpiration.
Which part of epidermal tissue system is being described by the above statements?
(a) Stomata
(b) Guard cells
(c) Epidermis
(d) Trichomes
Answer
D
Question. Which anatomy of plants is being described by the statements given below ?
(i) The cortex consists of several layers of thin-walled parenchyma cells with intercellular spaces.
(ii) The tangential as well as radial walls of the endodermal cells have a depostion of waterimpermeable, waxy material -suberin- in form of casparian strips.
(iii) Secondary growth takes place.
(iv) Pith is small or inconspicuous.
(a) Dicotyledonous root
(b) Monocotyledonous root
(c) Dicotyledonous stem
(d) Monocotyledonous stem
Answer
A
Question. Which of the following statement is correct about heart wood/duramen ?
(i) It does not help in water and mineral conduction.
(ii) It is dark coloured but soft.
(iii) It has tracheary elements filled with tannins, resins, gums, oil, etc.
(iv) It is a peripheral part.
(v) They are sensitive to microbes and insects, hence least durable.
(a) (i) and (iii)
(c) (ii) and (iii)
(b) (iv) and (v)
(d) (iii) and (iv)
Answer
A
Question. Read the following statements and answer the question.
(i) It has a sclerenchymatous hypodermis, a large number of scattered vascular bundles and a large
parenchymatous ground tissue.
(ii) Vascular bundles are conjoint and closed.
(iii) Peripheral vascular bundles are generally smaller than the centrally located ones.
(iv) Phloem parenchyma is absent, and water- containing cavities are present within the vascular bundles.
Which plant anatomy is being described by the above statements?
(a) Dicotyledonous root
(b) Monocotyledonous root
(c) Dicotyledonous stem
(d) Monocotyledonous stem
Answer
D
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. 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 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
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: Cambium is a lateral meristem and cause growth in width.
Reason: Cambium is made up of fusiform and ray initials in stem.
Answer
B
Question. Assertion : In woody stems, the amount of heart wood continues to increase year after year.
Reason : The cambial activity continues uninterrupted.
Answer
A
Question. Assertion: Bulliform cells are useful in the unrolling of leaf.
Reason: Bulliform leaves store water.
Answer
B
Matching Type Questions
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 terms given in column I with their funciton given in column II and choose the correct option.
Column-I (Term) | Column-II (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 (Structure) | Column-II (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
Question. Match column-I with column-II and select the correct option from the codes given below.
Column-I | Column-II |
A. Stele | I. Innermost layer of cortex |
B. Endodermis | II. Suberin |
C. Casparian strips | III. All the tissues exterior to vascular cambium |
D. Bark | IV. All the tissues inner to endodermis |
(a) A – IV, B – I, C – II, D – III
(b) A – III, B – II, C – I, D – IV
(c) A – I, B – II, C – III, D – IV
(d) A – IV, B – II, C – I, D – III
Answer
A
Question. In the given columns, column I contain structures of female reproductive system and column II contain its feature. Select the correct match.
Column-I | Column-II |
A. Lateral meristem | I. Fascicular vascular cambium, interfascicular cambium and cork cambium. |
B. Apical meristem | II. Produces dermal tissue, ground tissues and vascular tissue. |
C. Bast fibres | III. Generally absent in primary phloem but found in secondary phloem. |
D. Sap wood | IV. Involved in the conduction of water and minerals from the root to leaf. |
(a) A – I, B – II, C – III, D – IV
(b) A – III, B – I, C – II, D – IV
(c) A – I, B – IV, C – III, D – II
(d) A – II, B – IV, C – III, D – I
Answer
A