Ectophloic siphonostele is found in :
[AIPMT 2005]
Cambium is a lateral meristem, as it –
[BHU 1991]
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Root apex has a zone of slow dividing cells in the middle of rapidly dividing cells. it is
[AMU1992]
Root apex is subterminal because it is
[JKMCE 1996]
Apical, intercalary and lateral meristems are differentiated on the basis of :
[DPMT 1997]
Active divisions occur in the cells of :
[MP PMT 1998]
Plant growth in length is due to activity of :
[MP PMT 1998]
Leaf primordium grows into adult lamina by means of :
[MP PMT 1998]
Meristem which forms primary vascular tissue is :
[CPMT 1998]
Meristematic tissue occurs in :
[APMEE 1999]
Totipotency is present in :
[AFMC 2000]
In monocots, root cap is formed by :
[AIIMS 2000]
Procambium form :
[DPMT 2001]
A living mechanical tissue having pecto cellulosic wall thickening is :
[Manipal 2001]
Lignin occurs in the cell walls of :
[MPPMT 1998]
Laticiferous vessels are found in :
[DPMT 1997]
When phloem is completely surrounded by xylem, the vascular bundle is called :
[AMU 1999]
Amphivasal or leptocentric vascular bundles are found in :
[BHU 1999]
Callose can occur in -
[AMU 1992]
Secondary growth occurs in -
[CPMT1992]
A narrow thin- walled cell with large nucleus and lying on the side of sieve tube is absent in
[BHU 1993]
An open collateral bundle is one in which
[CPMT 2000]
A bundle having phloem on either side of xylem is
[BHU 2001]
Which is enucleate at maturity
[Karnataka 2001]
Longest fibres are found in –
[Pb. PMT 1998]
Phloem tissue of angiosperms differs from that of gymnosperms in having –
[Pb.PMT 1997]
Chief function of phloem is conduction of
[AIIMS 1998]
A bundle with xylem and phloem separated by a strip of cambium is –
[Karnataka 1998]