Important MCQ On Anatomy of Flowering Plants Based on NCERT Textbook 6 chapter.

     QUESTION based on NCERT textbook.

Q1) Identify the wrong statement in context of heartwood. ….[NEET- 2017]
 a) Organic compounds are deposited in it
 b) It is highly durable
 c) It conducts water and minerals efficiently
 d) It comprises dead elements with highly lignified walls
2) What is the fate of primary xylem in a dicot root showing extensive secondary growth?

(A) It is retained in the centre of the axis

(B) It gets crushed

(C) May or may not get crushed

(D) If gets surrounded by primary phloem.

3) The vascular cambium normally gives rise to ….[NEET- 2017]
 a) Phelloderm
 b) Primary phloem
 c) Secondary xylem
 d) Periderm
4) Which one of the following cell always divides by anticlinal cell division?

(A) Fusiform initial cells

(B) Root cap

(C) Protoderm

(D) Phellogen.

5) Which of the following facilitates opening of stomatal aperture? ….[NEET- 2017] 

 a) Contraction of outer wall of guard cells  

 b) Decrease in turgidity of guard cells  

 c) Radial orientation of cellulose microfibrils in the cell wall of guard cells

 d) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells

6) A vesselless piece of stem possessing prominent sieve tubes would belong to

(A) Pinus

(B) Eucalyptus

(C) Grass

(D) Trochodendron.

7) Which is correct .. .. [ AIIMS 2007] 

 a) Tracheid are unicellular with wide lumen

 b) Vessels are multicellular with wide lumen

 c) Tracheids are multicellular with narrow lumen

 d) Vessels are unicellular with narrow lumen

8) When we peel the skin of a potato tuber, we remove

(A) Periderm

(B) Epidermis

(C) Cuticle

(D) Sapwood.

9) Which one has perforated wall ... ... [ AIEEE 2004] 

 a) Tracheid  

 b) Vessel  

 c) Fibre  

 d) Sclereid

10) Trichome take part in ... .. [ JKCMEE 2007] 

 a) Transpiration and exchange of gases  

 b) Protection and reduction of transpiration

 c) Exudation of water drops  

 d) Desiccation

11) In conifers fibres are likely to be absent in

(A) Secondary phloem

(B) Secondary Xylem

(C) Primary phloem

(D) Leaves.

12) Wound healing in plants takes place by activity of ... .. [ CPMT 2006] 

 a) Intercalary meristem  

 b) Secondary meristem  

 c) Apical meristem  

 d) Lateral meristem

13) Common feature in vessel elements and sieve tube elements is ... .. [ CBSE 2006] 

 a) Enucleate condition  

 b) Presence of P-protein  

 c) Thick secondary wall  

 d) Pores on lateral walls

14) Radial conduction of water occurs by ... ... [ AMU 2012] 

 a) Phloem  

 b) Vessels and tracheids  

 c) Vessels  

 d) Ray parenchyma cells

15) In case of dicot roots the cork cambium is derived from ... ... [Bhu 2003] 

 a) hypodermis  

 b) Epidermis  

 c) Pericycle  

 d) Cortex

16) A plant tissue, when stained, showed the presence of hemicellulose and pectin in cell wall of its cells. The tissue represents

(A) Collenchyma

(B) Sderenchyma

(C) Xylem

(D) Menstem.

17) A piece of wood having no vessels (trachea) must be belonging to

(A) Teak

(B) Mango

(C) Pine

(D) Palm.

18) In which of the following pairs of parts of a flowering plants is epidermisabsent?

(A) Root tip and shoot tip

(B) Shoot bud and floral bud

(C) Ovule and seed

(D) Petiole and pedicel.

19) 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.

20) Stem of grass and related plants elongate by the activity of ... .. [ KCET 2003] 

 a) Lateral meristem  

 b) Apical stem  

 c) Both apical and intercalary meristem

 d) Intercalary meristem

21) Vessels and fibres occur in ... .... [ JKCMEE 2008] 

 a) Xylem of angiosperms  

 b) Xylem of gymnosperms  

 c) Xylem of pteridophytes  

 d) All the above

22) Grafting is not possible in monocots because  they ... .. [ AFMC 2012] 

 a) Lack cambium  

 b) Have scattered vascular bundles  

 c) Have parallel venation  

 d) Are herbaceous

23) Companion cells are usually seen associated with .. .. [ AIIMS 2004] 

 a) Fibres  

 b) tracheids  

 c) Vessels  

 d) Sieve tubes

24) Quiescent centre in root meristem serves as ... .. [ AIIMS 2003] 

 a) Site for storage of food which is utilized during maturation

 b) Reservoir of growth hormones  

 c) Reserve for replenishment of damaged cells of the meristem

 d) Region of absorption of water

25) Secondary growth does not occur in monocots as their vascular bundles are ... ..[ JIPMER 2009] 

 a) Radial  

 b) Scattered  

 c) Enclosed by sclerenchyma  

 d) Closed

26) Meristematic cells are characterised by ... ... [ Manipal 2005] 

 a) Thin cell walls and large intercellular space

 b) Thin cell walls and no intercellular spaces

 c) Thick cell walls and large intercellular spaces

 d) Thick cell walls and small intercellular spaces

27)Interfascicular cambium and cork cambium are formed due to

(A) Cell division

(B) Cell differentiation

(C) Cell dedifferentiation

(D) Redifferentiation.

28) A conjoint and open vascular bundle will be observed in the transverse section of

(A) Monocot root

(B) Monocot stem

(C) Dicot root

(D) Dicot stem.

29) Epiblema of roots is equivalent to

(A) Pericycle

(B) Endodermis

(C) Epidermis

(D) Stele..

30) Cells of this tissue are living and show angular wall thickning. They alsoprovide mechanical support. The tissue is

(A) Xylem

(B) Sclerenchyma

(C) Collenchyma

(D) Epidermis.

Answers are Below :-

 1) C)
 2) A)
 3) C)
 4) C)
 5) C)
 6 ) D)
 7)  B)
 8)  A)
 9)  B)
10) B)
11) B)
12) B)
13) A)
14) D)
15) C)
16) A)
17) C)
18) A)
19) B)
20) C)
21) A)
22) A)
23) D)
24) C)
25) D)
26) B)
27) C)
28) D)
29) C)
30) C)

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