Sclerenchyma fibres of phloem are called ___________
Sclerieds
bast fibres
Wood
Jute
first formed xylem vessels are known as _____________
Protoxylem
Meta xylem
Sub meta xylem
N.T
During the formation of primary plaid body specific regions of the apical meristem produce decimal tissues,ground tissues and __________
Lateral tissues
Epidermal tissues
Cortical cells
Vascular tissues
Which is correct transport or conduction of substances?
organic food moves up through phloem
organic food moves up through xylem
Inorganic food moves upwardly and downwardly through phloem
Inorganic food moves upwardly and downwardly through xylem
The cells of the quiescent centre are characterised by _____________.
dividing regularly to add to tunica
having dense cytoplasm and prominent nuclei
dividing regularly to add to the corpus
having light cytoplasm and small nuclei
The apical meristem of the root is present ____________.
in all the roots
only in radicals
only in tap roots
only in adventitious roots
As the secondary growth takes place in a tree, thickness of ________________.
heartwood increases
sapwood increases
both increases
both remain the same
The meristem that occur in nature regions of shots and roots are called ________
Secondary meristem
Primary meristem
Lateral meristem
All above
Xylem is made up of ____________
Xylem tracheids
Vessels
Xy.Parenchyma
All correct
Organization of stem apexinto translocation of food because they possess _____________.
planes of cell division
regions of meristematic activity
rate of cell growth
rate of shoot tip growth
