The length of different internodes in a culm of sugarcane is variable because of
shoot apical meristem
position of axillary buds
size of leaf lamina at the node below each internode
intercalary meristem
Chlorenchyma is known to develop in the
pollen tube of pinus
cytoplasm of chlorella
mycelium of a green mould such as Aspergillus
spore capsule of a moss
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
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
maturing
elongating
widening
differentiating
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
Monocot leaves possess
lateral meristem
apical meristem
mass meristem
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
A leaf primordium grows into the adult leaf lamina by means of
marginal meristem
at first by apical meristem and later largely by marginal meristem
Which exposed wood will decay faster?
Sapwood
Softwood
Wood with lot of fibres
Heartwood
Death of protoplasm is a pre-quisite for a vital function like
transport of sap
transport of food
absorption of water
gaseous exchange
