5. Meristematic tissue
Increase in plant length by produce new
cells continuously.
Located at the growing shoot and root
apex
The cells are relatively smaller in size
compared to mature cells
Has large nucleusand the cytoplasm is in
abundance
6. • Every cell has a nucleus, which is
situated in the center of the cell
• The cells have a thin cell wall, which is
composed of only cellulose
7. Base on placed in plant, there are two
types of meristems:
• APIcAL MErISTEMS
• LATErAL MErISTEMS
8.
9.
10. Root Apical Meristem
1. Root cap
initials
2. Protoderm
3. Ground
meristem
4. Procambiu
m
5. Root cap
11. Types of meristems base on
basic formed :
1.
2.
Primary growth
Secondary growth
12. There are two theory that
explain about primary growth
Histogen's theory
Tunica Corpus's theory
17. Epidermal Tissue
Consisting of the cells in polygonal
or flat shapes
• The functions of epidermal
tissue: those are as a protector for
the tissue beneath; as a protector of
the plant from the presence of
excessive evaporation; also has an
important role in gases exchange,
metabolic substance ecretion and
water absorbtion
•
18. Vascular TissuE
Pays the the role in carrying substances to
cover the needs of plants
• Divided into two:
1. Xylem
2. Phloem
•
29. Characteristics of and difference between xylem
and phloem
Characteristics
Definition
Xylem
Phloem
Dead, complex permanent Living, complex permanent
tissue
tissue
Xylem tracheids and
tracheae
Sieve tubes and companion cells
Associated
elements
Xylem fibres and xylem
parenchyma
Phloem fibres and phloem
parenchyma
Non-living
components
Xylem tracheids
Only Phloem fibres
Only xylem parenchyma
Sieve tubes companion cells and
phloem parenchyma
Conduction of water
Conduction of food and other
organic substances
Essential elements
Living components
Function
(Source: http://www.tutorvista.com/content/biology/biology-iii/plant-histology/pholem.php)
31. Ground Tissue
The ground tissue system synthesizes organic
compounds, supports the plant and provides
storage for the plant. It is mostly made up
of parenchyma cells but can also include
some collenchyma and sclerenchyma cells as
well.
32.
33. COLLENCHYM
- Homogenous tissue
- Has no lignin
- The primary cell wall is thickened by pectin
compound, cellulose and hemicellulose
- Located in stems and leaf, located right
under epidermis, rarely in root
- Function : as a plant lasing, particularly in
growing active organs of plants
39. SCLERENCHYM
The cell walls are evenly thickened and lignified
and usually pointed at both ends. The nucleus
is absent and hence the tissues are made up of
dead cells.
They have simple pits in the walls and the wall
between adjacent cells is prominent. It is found
abundantly in cells like coconut, jute and hemp.
They provide elasticity, flexibility and rigidity to
the plant body forming a mechanical support.