Anatomy Of Flowering Plants NEET Important Questions pdf – Biology Class 11 Chapter 6 MCQ

Anatomy Of Flowering Plants NEET Important Questions from Class 11 MCQ with their answer Keys.

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Anatomy Of Flowering Plants NEET Important Questions

1) Which one of the following is an effective tissue of growing organs with sufficient elasticity?
a) Parenchyma b) Collenchyma
c) Sclerenchyma d) All the above

2) A mature sieve tube differs from xylem vessel in?
a) Being nearly dead
b) Lacking cytoplasm
c) Lacking a functional nucleus
d) Not having lignified wall

3) A root hair is formed by?
a) Epidermal cell b) Endodermal cell
c) Cortical cell d) Pericycle cell

4) All xylem elements when mature are dead except?
a) Tracheids b) Vessels
c) Xylem parenchyma d) Xylem fibres

5) Both vessels and companion cells are absent in?
a) Angiosperms b) Pteridophyta
c) Gymnosperms d) In (b) and ©

6) Cuticle is secreted by?
a) Epidermis b) Endodermis
c) Both (a) and (b) d) Hypodermis

7) Specialised parenchyma cells which store tannins, oils and crystals of calcium oxalate are called?
a) Sclereids b) Idioblasts
c) Stone cells d) Conjunctive tissue

8) In pteridophyta and gymnosperms which cells are present in place of companion cell?
a) Sclereids b) Albuminous cells
c) Idioblasts d) None of the above

9) Wood is a common name of?
a) Phloem b) Secondary xylem
c) Cambium d) Vascular bundles

10) Mechanical tissue consisting of living cells is?
a) Sclerenchyma b) Collenchyma
c) Chlorenchyma d) Parenchyma

11) Interfascicular cambium develops from the cells of?
a) Pericycle b) Medullary rays
c) Xylem parenchyma d) Endodermis

12) The only plant cells without nuclei among the following are?
a) Cambium cells b) Cells of pericycle
c) Xylem parenchyma d) Sieve tubes

13) Vessels differ from tracheids?
a) In being derived from single cell
b) In having vertical rows of cells with dissolved cross walls
c) In being living
d) They help in the conduction of water

14) Vascular cambium and cork cambium are examples of?
a) Lateral meristem
b) Apical meristem
c) Elements of xylem and phloem
d) Intercalary meristem

15) Radial conduction of water takes place by?
a) Vessels b) Vessels and trachieds
c) Phloem d) Ray parenchyma cells

16) Sieve tubes better suited for translocation, because?
a) Possess broader lumen and perforated cross walls
b) Are broader than long
c) Possess boradered pits
d) Possess no end walls

17) Trachea, tracheids, wood fibres and parenchyma tissues are found in?
a) Xylem b) Phloem
c) Cambium d) Cortex

18) In the following pairs where do you get lignin in both the element?
a) Tracheid and Collenchyma
b) Sclerenchyma and sieve tube
c) Sclerenchyma and trachea
d) Parenchyma and endodermis

19) Plant tissues, which are actively growing have water content of?
a) 40 – 50% b) 65 – 75%
c) 20 – 40% d) 85 – 95%

20) Vessels are absent in?
a) Teak wood b) Shisham wood
c) Chir wood d) Sal wood

21) Chlorenchyma cells are chlorophyll containing——?
a) Sclerenchyma cells b) Epidermis
c) Parenchyma d) Phloem

22) Healing of wound in plants takes place by the activity of?
a) Ground tissue
b) Callus deposition
c) Secondary meristem
d) Permanent tissue

23) Aerenchyma is formed in the tissue of?
a) Sclerenchyma b) Parenchyma
c) Phloem d) None of the above

24) Lignin is the important constituent in the cell wall of?
a) Phloem b) Parenchyma
c) Xylem d) Cambium

25) Xylem position in secondary xylem is?
a) Exarch b) Endarch
c) Mesarch d) None of these

26) Quiescent center is found in?
a) Stem tip b) Root tip
c) Leaf tip d) None of these

27) The difference in phloem of gymnosperms is due to?
a) Parenchymatous in nature
b) Sieve cell absent
c) Companion cell absent
d) Lignified structure

28) Commercial fibres are obtained from?
a) Xylem, phloem and sclerenchyma only b) Xylem, phloem, sclerenchyma and epidermis
c) Xylem Parenchyma, endodermis & epidermis
d) Xylem, collenchyma, endodermis

29) Hard lignified thick walled long and pointed cells a plant are?
a) Parenchyma b) Sclerenchyma
c) Collenchyma d) Sclereids

30) Tracheids differs from vessels in having?
a) Thick wall
b) Bordered pits
c) Discontinuous intercalary wall
d) Spiral thikening

31) How many histogens are present at the apex of root?
a) 1 b) 2
c) 3 d) 4

32) Histogen theory is more applicable for?
a) Root apex b) Shoot apex
c) Meristematic tissue d) None of these

33) A component of xylem is?
a) Sieve tube b) Medullary ray
c) Sclereids d) Tracheid

34) A stele with a central core of xylem surrounded by phloem is called?
a) Protostele b) Siphonostele
c) Solenostele d) Dictyostele

35) The arrangement of xylem in stem is?
a) Endarch b) Exarch
c) Mesarch d) Both a and b

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

37) In root, pericycle gives rise to?
a) Branch root and cork cambium
b) Cortex and pith
c) Epidermis and vascular bundles
d) Xylem and phloem

38) Periblem gives rise to?
a) Pericycle b) Cortex
c) Medulla d) Epidermis

39) Vascular bundles are derived from (originate from)?
a) Dermatogen
b) Periderm
c) Endogenous tissue the procambial strand or plerome
d) Cortex

40) The composition of stele is?
a) Pith, vascular bundle
b) Pericycle, pith
c) Endodermis, pericycle
d) Endodermis, pericycle, pith

Anatomy Of Flowering Plants NEET Important Questions – Answer Keys

1) B. Collenchyma provide tensile stregnth & elasticity to growing stem

2) D. Seive tube not having lignified wall but it is present in xylem vessel

3) A. root hair is epidermal in origin

4) C. Xylem parenchyma is living

5) D. Vessels & companion cells are characteristic of Angiosperm only

6) A. Epidermis secrete cuticle

7) B. An idioblast is an isolated parenchyma plant cell that differs from neighboring tissues. They have various functions such as storage of reserves, excretory materials, pigments, and minerals.They could contain oil, latex, gum, resin, tannin or pigments etc.

8) B. Albuminous cells seen in Lower vascular plants

9) B. Wood is secondary xylem

10) B. Collenchyma is living mechnical tissue

11) B. Medullary rays give rise to interfascicular cambium

12) D. In sieve tubes, nucleus is present only in young stage and without nuclei at maturity.

13) B. In having vertical rows of cells with dissolved cross walls

14) A. Lateral meristems occur laterally in the axis, parallel to the sides of stems and roots. The cambium of vascular bundles (fascicular, interfascicular and extrastelar cambium) and the cork cambium (phellogen) belongs to this category.

15) D. Ray parenchyma cells

16) A. Possess broader lumen and perforated cross walls

17) A. The term xylem was introduced by Nageli (1858). Xylem is a conducting tissue. Xylem consists of Tracheids, Trachea (Xylem vessels), wood fibres and xylem parencyma.

18) C. Sclerenchyma and trachea (Xylem Vessel)

19) D. 85 – 95%

20) C. Chir is gymnosperm plant which belongs to family pinaceae of gymnosperm.

21) C. Chlorenchyma is the modification of parenchyma or specialized parenchyma.

22) B. When wound is deep it is healed as follows healthy cells adjacent to the wound from a mass of parenchymatous cells called callus. The covers the wound entirely. Thus wound in healed.

23) B. Parenchyma containing air spaces is known as aerenchyma. It provides buoyancy to hydrophytes.

24) C. Most of the xylem cells have deposition of lignin on their cell wall.

25) D. Because there is no variation in protoxylem and metaxylem in cells of secondary xylem.

26) B. At the apex of roots some cells are not dividing, this region is called quiescent center.

27) C. Companion cell absent in phloem of gymnosperm

28) B. Xylem, phloem, sclerenchyma and epidermis (Cotton is epidermal fiber)

29) B. Sclerenchyma (=Fibers)

30) B. In tracheids if the entire surface is thickened leaving unthickened circular areas known as ‘bordered pits’. The vessels lack the bordered pits.

31) D. According to histogen theory, apex of root is made up of calyptrogen, dermatogen, periblem and plerome.

32) A. Root apex

33) D. Tracheid

34) A. Protostele term was given by Jeffrey. It is the simplest and most primitive type of stele in which central core of xylem surrounded by phloem.

35) A. Endarch

36) B. Intercalary meristem

37) A. Branch root and cork cambium

38) B. Periblem is the middle layer gives rise to cortex and endospermis.

39) C. Endogenous tissue the procambial strand or plerome

40) A. Pith, vascular bundle

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