CBSE Class 11 Biology Anatomy of Flowering Plants MCQs Set D

Question. By the activity of cambium ring, the cells cut off toward pith, mature into
(a) Secondary phloem
(b) Primary xylem
(c) Secondary xylem
(d) Primary phloem

Answer: C

Question. Tissue that produce woody axis and appear later than primary meristem is called
(a) Apical meristem
(b) Intercalary meristem
(c) Secondary meristem
(d) Both a and b

Answer: C

Question. Select out the incorrect statement regarding to xylem
(a) On the basis of origin xylem is differentiated into primary xylem and secondary xylem.
(b) On the basis of development, secondary xylem is differentiated into protoxylem & metaxylem
(c) In stems, protoxylem lies towards centre and metaxylem towards periphery
(d) In roots, metaxylem lies towards centre & protoxylem towards periphery

Answer: B

Question. Obliterated central lumen (cavity) is the characteristic feature of
(a) Tracheids
(b) Vessels
(c) Xylem fibres
(d) Xylem parenchyma

Answer: C

Question. Impervious nature of cork for water is due to deposition of which chemical ?
(a) Lignin
(b) Suberin
(c) Pectin
(d) Hemicellulose

Answer: B

Question. Example of lateral meristem/s is/are :-
(A) Intrafascicular cambium (Fascicular vascular cambium)
(B) Interfascicular cambium
(C) Cork cambium
(a) Only A
(b) Only B
(c) Only C
(d) All A, B and C

Answer: D

Question. In dicot stem, the cells of cambium present between primary xylem and primary phloem is the
(a) Interfascicular cambium
(b) Vascular cambium
(c) Intra fascicular cambium
(d) Cork cambium

Answer: C

Question. Due to continuous growth of secondary xylem which of the following get crushed gradually
(a) Primary phloem
(b) Earlier formed secondary phloem
(c) Either a or b
(d) Both a and b

Answer: B

Question. Cells of parenchyma are generally isodiametric but different in shape. Which of the following is not a shape of parenchyma :-
(a) Spherical
(b) Fibrous
(c) Oval
(d) Elongated

Answer: B

Question. Permanent tissue, having all cells similar in structure and function is called
(a) Simple tissue
(b) Complex tissue
(c) Cambium
(d) Apical meristem

Answer: A

Question. The cells of secondary cortex are :-
(a) Sclerenchymatous
(b) Parenchymatous
(c) Collenchymatous
(d) Meristematic

Answer: B

Question. Bark that is formed early in the season is called
(a) Late bark
(b) Soft bark
(c) Hard bark
(d) Ring bark

Answer: B

Question. The innermost layer of cortex of dicot root is characterised by presence of suberin thickening. This suberin thickening occurs on
(a) Radial walls
(b) Transverse wall
(c) Tangential wall
(d) Both a & c

Answer: C