391.
Embryo of a seed is made up of
A
Meristematic tissue
B
Parenchyma
C
Collenchyma
D
Sclerenchyma
Answer :
Meristematic tissue
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392.
Bordered pits occur in
A
Sec. phloem
B
Protoxylem
C
Metaxylem
D
Bark
Answer :
Metaxylem
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393.
The cambium which produces cork is called as
A
Phelloderm
B
Phellogen
C
Periblem
D
Plerome
Answer :
Phellogen
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394.
Normally in dicot stem, phellogen develops from
A
Hypodermis
B
Phellem
C
Endodermal cells
D
Epidermal & pericycle cells
Answer :
Hypodermis
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395.
Mesophyll is differentiated in spongy & palisade tissue is
A
Radial vascular bundle
B
Secondary growth
C
Pith less developed or absent
D
Vascular bundles 15 - 20
Answer :
Secondary growth
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396.
The lateral branches of roots (dicot) generally originates from
A
Cortex
B
Endodermis
C
Cork cambium
D
Pericycle cells lying against protoxylem
Answer :
Pericycle cells lying against protoxylem
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397.
Tunica is a rib meristem because it divides in
A
Anticlinal plane only
B
Periclinal plane only
C
A and B both
D
Several different planes
Answer :
Anticlinal plane only
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398.
The vascular cambium normally gives rise to:
A
Primary phloem
B
Secondary xylem
C
Periderm
D
Phelloderm
Answer :
Secondary xylem
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399.
Stem of date palm increases in girth due to activity of
A
Intercalary meristem
B
Apical meristem
C
Lateral meristem
D
None of the above
Answer :
Apical meristem
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400.
All the xylem elements, when mature are dead except
A
Tracheids
B
Vessels
C
Xylem Parenchyma
D
Xylem Fibre
Answer :
Xylem Parenchyma
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