State the location and
function of different types of meristem.
State the location and function of different types of meristem.
Meristems
are specialised regions of plant growth.
The meristems mark the regions where active cell division and rapid
division of cells take place. Meristems are of three types depending
on their location.
Apical
meristem
It
is present at the root apex and the shoot apex.
The shoot apical meristem is present at the tip of the shoots and its
active division results in the elongation of the stem and formation
of new leaves. The root apical meristem helps in root elongation.
Intercalary
meristem
It
is present between the masses of mature
tissues present at the bases of the leaves of grasses. It helps in
the regeneration of grasses after they have been grazed by
herbivores. Since the intercalary meristem and the apical meristem
appear early in a plant’s life, they constitute the primary
meristem.
Lateral
meristem
It
appears in the mature tissues of roots and shoots.
It is called the secondary meristem as it appears later in a plant’s
life. It helps in adding secondary tissues to the plant body and in
increasing the girth of plants. Examples include fascicular cambium,
interfascicular cambium, and cork cambium
Meristems are specialised regions of plant growth. The meristems mark the regions where active cell division and rapid division of cells take place. Meristems are of three types depending on their location.
Apical meristem
It is present at the root apex and the shoot apex. The shoot apical meristem is present at the tip of the shoots and its active division results in the elongation of the stem and formation of new leaves. The root apical meristem helps in root elongation.
Intercalary meristem
It is present between the masses of mature tissues present at the bases of the leaves of grasses. It helps in the regeneration of grasses after they have been grazed by herbivores. Since the intercalary meristem and the apical meristem appear early in a plant’s life, they constitute the primary meristem.
Lateral meristem
It appears in the mature tissues of roots and shoots. It is called the secondary meristem as it appears later in a plant’s life. It helps in adding secondary tissues to the plant body and in increasing the girth of plants. Examples include fascicular cambium, interfascicular cambium, and cork cambium
