plant't tisuue
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Plant Tissue
SMA N 3 SEMARANG
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Based on the form, there are two kinds such as:
1. Meristemtissue
There are tree groups:
a. Promeristem tissue
b. Primer meristem
c. Secunder meristem
2. Permanent tissue
There are four groups:
a. Epidermis tissueb. Parenckim tissue
c. Suported tissu
d. The transported tissue
Plants Tissue
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EPIDERMIS TISSUE
The outer cell layer
Consists of single cell
Tightly arranged
Found in roots, stem,
leaves, fruits and seeds
The function is for the
organ covered by it
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Elodea meristem (rapidlydividing cell region)
Longitudinal section, l.s.
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Leaf epidermis structure
Greener on top
CO2 gets inhere
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Modifications and Functions
Root hair.absorbs water and minerals.
Wax and cuticles
minimalize water loss.Stomata closing cell.
controls gas exchange.
Foam tissue.expands the power for protection.
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Parenchyma's TISSUE
Main basic cell
Polihydral.
Thin walls.
Inter cell room.
Has big vacuoles, theprotoplasm can multiply.
Some has chlorophyll(chlorenchyma)
Found in all parts of plants
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Collenchyma's Tissue
The protoplast cannotmultiplyDoesnt have secondary wallThe primary wall is thin andflexible.Found in primary tissue.
Supports the stems andleaves in growing stage.In old plants it becomessclerenchyma cell.
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SCLERENCHYMA
TISSUE
CHARACTERISTICS :
The basic tissue.
The main component of cell wall.
Supports and Protects the body.
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Sclerenchyma
The cells are long, slim and has sharp point.The wall is thin and flexible.
Found in stems, leaves and flowers.Reoriented the plants.
SclereidShort .Has various shapes and forms.
Star supports and protects the plants.Rectangular protects the embryo when it falls and floats.Gives the specific characteristic in the flesh of fruit.
Sclerenchyma
Fiber Sclerenchyma Sclereid
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Structure of sclerenchyma
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1. XYLEM : A group of cells that form a cylinder.
Straw Elements :
Extended formation on the point and the end.Holes are found on both points.
Flows water and minerals.
Tracheid:
A long and sharp single cell.Holes are found on the cell wall.
Water and minerals pass through it.
2. PHLOEM: transportation tissue which consists of some
components of tapis straw which distributes the products of
photosynthesis.
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The Plants Organ
The plants organ : a group of tissues
joining together to do centain task onactivity.
There are four group :
1.Root2.Stem
3.Leave
4.Flower
5.Fruit
6.seed
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Roots function and structure
Functions:
Absorbs water and minerals
Support the body
Storage for food
Transports the minerals from soil
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TRANSPORTATION TISSUE
XYLEM PHLOEM
TRACHEID
STRAW ELEMENTS
PhloemXylem
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Stucture of anatomy root
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Stem
Functions:Absorbs water and minerals
Support the body
Storage for foodTransports the minerals from soil
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Structure of anatomy
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Leaves
Functions:
place where the process of
photosynthesis happenevaporation station
gas exchange
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Leaf structure
Greener on top
CO2 gets inhere
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Leaves
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Leaf diagram palisade layer
CO2
Mostchlorophyll
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Structure
Wide
Helps to catch more light
energy
Thin
Help get carbon dioxide
from bottom to top ofleaf for photosynthesis
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Stoma is a small hole
Its size is controlled by 2 guard cells
closed open
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Stoma function is for gas exchangein the leaf
Carbondioxide
oxygenGuard
cell
Provided plant isphotosynthesising
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Stomata open and
close at different
times of the day
When it is light the
plant needs CO2 forphotosynthesis so
the stoma open
At night (darkness)
they close
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Gas exchange
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Wheat seed
Root hairsFragile parts of
cells that grow
from the main root
They massivelyincrease the
surface area for
absorption
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CORTEX
Placed between
epidermis and stele.
Consists of
parenchymas andcollenchyma's cells
CORTEX
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STELE
Consists of:
Transportation tissue.
Empulur
Pericambium.
Jari-jari empulur.
stele
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flowers
Structure of Flower
petal
crownbenang sari
putik
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Seed
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