Jaringan Tumbuhan Kelas 8

1. Structure and Function
of
Plant Tissues

2. PLANT TISSUE
Lignified Parenchyma Cells Provide Strength
Plant
Tissue
Meristematic
Tissue
Apical Meristems
Lateral Meristems
Intercalary
Meristems
Permanent
Tissue
Dermal Tissue
Ground Tissue
(Parenchyma)
Supporting Tissue
(Collenchyma and Sclerenchime)
Vascular Tissue
(Xylm and Phloem)

3. Tissues in which the cells remain
forever young
Divide actively throughout the life of the
plant
Responsible for wound healing
MERISTEMATIC
TISSUE

4. Meristematic Tissue
Characteristic:
• Tissues have the
capability to develop
by swift division
• Growth in length and
growth in diameter of
the plant
• The cells are cubical,
living cells with a big
nucleus
Existent at the growing tips or apical of stems
and roots
(length)
Existent in the radial portion of the stem or
root (thickness)
Found at the internodes or at the base of the leaves
(size of the internode)

5. a group of living or dead cells
which are formed by
meristematic tissues that
have lost their ability to divide
PERMANENT
TISSUE

6. Dermal/Epidermis Tissue
The outer layer of tissue that surrounds
the primary body of vascular plants.
Covers and protects the plant, and
controls gas exchange and water
absorption
The
epidermis is
usually one
cell layer
thick, and its
cells lack
chloroplasts
covered by a waxy cuticle
that prevents water loss due
to transpiration
Stomata under the leaves allow gas
exchange
01

7. Trichomes, or small hairlike or spikey found on the stem
and leaves, aid in defense against herbivores
the epidermis breaks into a multi-layered periderm
(or bark).The periderm functions as the plant’s first
line of defense, protecting it from injury, dehydration,
fire, and pathogens.

8. It is a living cell
Have the ability to divide and
differentiate into any cell
The cells of parenchyma
are isodiametric or
polyhedral in shape
These cells are closely
packed or may have
small intercellular space
02 Parenchyma/
Ground Tissue

9. 03
Supporting Tissue
Collenchyma is
found in the
marginal regions
of leaves and
stems and offers
the structural
framework and
mechanical
support to plants
Living cells with
minute
intercellular gaps
Sclerenchym
a is found in
the covering
of seeds and
nuts, around
the vascular
tissues in
stems and
the veins of
leaves
Dead cells
with lignin
deposits in
their cell wall
Sclerenchyma provides strength
Collenchyma provides flexibility

10. 04
VASCULAR TISSUE
the vascular bundle in roots, stems, and roots

11. QUIZ

12. Which of the meristems
are involved in upsurging
the length of the plant?

13. Compare and contrast
between dermal tissue
and ground tissue?

14. Identify the structure - These are
elongated, dead cells with lignin
deposits in their cell wall having no
intercellular gaps. They are found in the
covering of seeds and nuts and
provides strength to the plant?

15. Identify the structure - These tissue
provide flexibellity, living cells with the
cell wall have an intercellular gaps.
They are found in the marginal region
of leaves and stems

16. Mention the functions of Xylem and
Phloem?