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
A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is
cork cambium
endodermis
pericycle
Which one yield fibres?
Coconut
Oak
Teak
Sissoo
Out of diffuse porous and ring porous woods, which is correct?
Ring porous wood, carries move water for short period
Diffuse porous wood, carries more water
Ring porous wood carries more water when need is higher
Diffuse porous wood is less specialized but conducts water rapidly throughout
Angular collenchyma occurs in
Cucurbita
Tagetes
Althaea
Salvia
Cork is formed from
cork cambium (phellogen)
phloem
xylem
Where do the Casparian bands occur?
Epidermis
Endodermis
Pericycle
Phloem
Death of protoplasm is a pre-quisite for a vital function like
transport of sap
transport of food
absorption of water
gaseous exchange
Pericycle of roots produces
mechanical support
lateral roots
vascular bundles
adventitious buds
