First vascular plant is
Thallophyta
Pteridophyta
Bryophyta
Spermatophyta
B.
Pteridophyta
Pteridophyte is called vascular cryptogams. They are a seedless vascular plant as they posses water-conducting xylem and food translocating phloem but do not produce seed (instead spare formation takes place).
Secondary xylem and phloem in dicot stem are produced by
Apical meristems
Vascular cambium
Axillary meristems
Phellogen
Quiescent centre is the zone of
least mitotic activity in the root apex
least mitotic activity in the shoot apex
maximum mitotic activity in the root apex
maximum mitotic activity in the shoot apex
What differentiates leaf of dicots from monocots?
Parallel venation
Differentiation of palisade and spongy parenchyma
Stomata only on upper side
Stomata both on upper and lower sides
Ectophloic siphonostele is found in
Adiantum and Cucurbitaceae
Osmunda and Equisetum
Marsilea and Botrychium
Dicksonia and maiden hair fem
The term 'bark' refers to
Phellem, phelloderm and vascular cambium
Periderm and secondary xylem
Cork cambium and cork
Phellogen, phellem, phelloderm and Secondary phloem
Meristematic tissue in vascular bundle is
phellem
procambium
interfascicular cambium
fascicular cambium
Duramen is present in
inner region of secondary wood
part of sap wood
outer region of secondary wood
region of pericycle
