PRASHANT KIRAD
TISSUE
TISSUE
th
Class-9 Science
- Rapid Revision -
, Rapid
Revision
First Watch One Shot
, PRASHANT KIRAD
Tissue:
TissuesA group of similar cells in structure and/or function, working together
to perform a specific function.
ORGAN
CELLS TISSUES ORGANS ORGANISM
SYSTEM
Unicellular Multicellular Plant Tissues
Permanent Tissues Meristematic Tissues
Tracheids Sieve Tube Elements
Vessels Companion Cells
Xylem Parenchyma Phloem Parenchyma
Xylem Fibres Phloem Fibres
, PRASHANT KIRAD
A group of undifferentiated plant cells capable of continuous
Meristematic Tissues
division, responsible for growth in specific regions of the plant.
Meristematic Tissue Permanent Tissue
Apical Meristem
They have the capacity to They do not have the
divide. capacity to divide.
Location: Tips of roots and
shoots
Meristematic tissue has Permanent tissue has cells
cells small in size and large in size and their shape
Function: Growth in length
isodiametric in shape. varies. Example: Root tip, shoot tip
Intercalary
Vacuoles are usually absent Vacuoles are present in
Meristem
in meristematic tissue. living cells of permanent
tissue.
Location: Base of
Intercellular spaces are Visible intercellular spaces
leaves or internodes Location: Along the sides of
generally absent. are present.
(mainly in grasses) stems and roots (in vascular
Functions of Meristematic Tissue: Function: Regrowth of bundles)
parts after cutting or Function: Growth in
Enables growth in plants (length,
grazing thickness/girth
girth, regeneration)
Example: Grass stems Example: Vascular cambium,
Produces new cells that later cork cambium
become specialized (differentiation)
Helps in wound healing and Lateral Meristem
regeneration in plants (Cambium)
TISSUE
TISSUE
th
Class-9 Science
- Rapid Revision -
, Rapid
Revision
First Watch One Shot
, PRASHANT KIRAD
Tissue:
TissuesA group of similar cells in structure and/or function, working together
to perform a specific function.
ORGAN
CELLS TISSUES ORGANS ORGANISM
SYSTEM
Unicellular Multicellular Plant Tissues
Permanent Tissues Meristematic Tissues
Tracheids Sieve Tube Elements
Vessels Companion Cells
Xylem Parenchyma Phloem Parenchyma
Xylem Fibres Phloem Fibres
, PRASHANT KIRAD
A group of undifferentiated plant cells capable of continuous
Meristematic Tissues
division, responsible for growth in specific regions of the plant.
Meristematic Tissue Permanent Tissue
Apical Meristem
They have the capacity to They do not have the
divide. capacity to divide.
Location: Tips of roots and
shoots
Meristematic tissue has Permanent tissue has cells
cells small in size and large in size and their shape
Function: Growth in length
isodiametric in shape. varies. Example: Root tip, shoot tip
Intercalary
Vacuoles are usually absent Vacuoles are present in
Meristem
in meristematic tissue. living cells of permanent
tissue.
Location: Base of
Intercellular spaces are Visible intercellular spaces
leaves or internodes Location: Along the sides of
generally absent. are present.
(mainly in grasses) stems and roots (in vascular
Functions of Meristematic Tissue: Function: Regrowth of bundles)
parts after cutting or Function: Growth in
Enables growth in plants (length,
grazing thickness/girth
girth, regeneration)
Example: Grass stems Example: Vascular cambium,
Produces new cells that later cork cambium
become specialized (differentiation)
Helps in wound healing and Lateral Meristem
regeneration in plants (Cambium)
