Question No:1
Spring wood and Autumn wood are found in
(A) Sapwood
(B) Phellogen
(C) Heartwood
(D) both a & c
Question No:2
Meristems are :
(A) Mature cells
(B) Well differentiated cells
(C) Embryonal cells
(D) None of these
Question No:3
Quiescent centre possesses:
(A) Activity dividing cells
(B) Meristematic cells
(C) Passive cells
(D) Storage cells
Question No:4
Calyptra occurs at the very tip of
(A) Root
(B) Shoot
(C) Leaves
(D) floral buds
Question No:5
Cambial cells divide:
(A) Vertically
(B) Anticlinally
(C) Tangentially
(D) Obliquely
Question No:6
Inter fascicular cambium is :
(A) Primary meristem
(B) Secondary meristem
(C) Abnormal meristem
(D) None of these
Question No:7
Intercalary meristem occurs mainly in
(A) Some dicot leaves
(B) Some monocot stems
(C) In all monocot stems
(D) Dicot stem and roots
Question No:8
Ray initials are found in:
(A) Cork cambium
(B) Vascular cambium
(C) Lateral meristem on the whole
(D) Ground tissue
Question No:9
Based on function meristems are classified by
(A) Strasburger
(B) Nageli
(C) Schmidt
(D) Haberlandt
Question No:10
Xylem and phloem of primary plant body are formed by
(A) Dermatogen
(B) Protoderm
(C) Promeristem
(D) Procambium
Question No:11
Meristematic activities are best seen in
(A) Cambial meristem
(B) Root and shoot apices
(C) At leaf tips
(D) All of these
Question No:12
Procambium gives rise to
(A) Vascular cambium
(B) Xylem
(C) Ground tissue
(D) Dermal tissue
Question No:13
Meristem which produces vascular bundles is
(A) Procambium
(B) Lateral meristem
(C) Secondary meristem
(D) Mass mieristem
Question No:14
Apical, intercalary and lateral meristems are recognized on the basis of their
(A) Specific function
(B) Position
(C) Mode of formation
(D) None of these
Question No:15
Primary meristems are those which originate
(A) Since birth from embryonal tissue
(B) During secondary meristem
(C) By dedifferentiation
(D) None of the above
Question No:16
Phellem and phelloderm are the products of
(A) Lateral meristem
(B) Phellogen
(C) Cork cambium
(D) All of these
Question No:17
The term ‘meristem’ is given by
(A) Grew
(B) Nageli
(C) Strasburger
(D) Hanstein
Question No:18
Dedifferentiation occurs during the formation of
(A) Cork cambium
(B) Vascularcambium
(C) a & b
(D) Sclerenchyma
Question No:19
Examples of dead cells are:
(A) Stone cells, sclerotic cells, Fibers, xylem
(B) Velamen cells, cork cells, collenchyma cells, xylem
(C) Xylem tracheids, vessels, fibres and xylem parenchyma
(D) All of the above
Question No:20
Lignified tissues are:
(A) Permeable for gases, solutes and solvents
(B) Provided with simple or bordered pits
(C) meant for mechanical strength or conduction
(D) all of the above