Passage cells are thin walled cells found in
endodermis of roots facilitating rapid transport of water from cortex to pericycle
phloem elements that serve as entry points for substances for transport to other plant parts
testa of seeds to enable emergence of growing embryonic axis during seed germination
central region of style through which the pollen tube grows towards the ovary
Vascular cambium produces
primary xylem and primary phloem
secondary xylem and secondary phloem
primary xylem and secondary phloem
secondary xylem and primary phloem
Bordered pits are found in
sieve cells
vessel wall
companion cells
sieve tube wall
Periderm is produced by
vascular cambium
fascicular cambium
phellogen
intrafascicular cambium
Sieve tubes are suited for translocation of food because they possess
bordered pits
no end walls
broader lumen and perforated cross walls
no protoplasm
For union between stock and scion in grafting which one is the first to occur?
Formation of callus
Production of plasmodesmata
Differentiation of new vascular tissues
Regeneration of cortex and epidermis
Cork is formed from
cork cambium (phellogen)
phloem
xylem
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
maturing
elongating
widening
differentiating
Pericycle of roots produces
mechanical support
lateral roots
vascular bundles
adventitious buds
A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is
cork cambium
endodermis
pericycle
