Pith is absent in
protostele
eustele
amphiphloic stele
ectophloic stele
A.
protostele
Protostele is simplest and most primitive type of stele, in which, vascular cylinder consists of solid core of xylem surrounded by phloem, pericycle and endodermis. There is no pith.
Portion of apical meristem that gives xylem tissue is called
protoxylem
procambium
metaxylem
tracheid
Interfascicular cambium is a
primary meristematic tissue
primordial meristem
type of protoderm
secondary meristematic tissue
In the following pairs, where do you get lignin in both the element?
Tracheid and collenchyma
Sclerenchyma and sieve tube
Sclerenchyma and trachea
Parenchyma and endodermis
Interfascicular cambium develops from the cells of
medullary rays
xylem parenchyma
endodermis
pericycle
One of the characteristic of sieve tube is
it is a part of phloem
function is transport of inorganic solutes
it is dead cell
sieve plate is not present
Age of a tree can be estimated by
its height and girth
biomass
number of annual rings
diameter of its heartwood