Photosynthesis Uitm
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Transcript of Photosynthesis Uitm
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YES
No
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photosynthesis process.
(3)state the structure of leaf for
adaptation to photosynthesis.
(4)identify the parts of cross section of
leaf.
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Do they eat???
Have you ever think
Where do plants get
the energy they
need to grow?
Do they drink???
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Photosynthesis is the process by which
plants use energy from the sun to transform
carbon dioxide and water into a storable
form of energy, glucose.
Plants use some of their own stored
energy to support their life processes such
as growth and reproduction.
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Animals take energy that plants store intheir tissues. Animals and humans, rely on
the carbohydrates found in plant roots,
stems, leaves, and fruits as their primary
source of energy.
The starting point for this transfer of
energy is photosynthesis. This is why plants
are called producers.
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Shape
Flattened leaf has largesurface to receive more
light
Thin leaf for light to reach
lower layers and for
diffusion of gases
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Palisade
mesophyll
Found below the upperepidermis
The cells are column-
shaped and contain many
chloroplast
They are closely packedtogether vertically to
receive maximum sunlight
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Inter-
cellular air
space
The cellular air-space
permit an
uninterrupted
exchange of gases
between leaf and the
atmosphere
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v
Stomata is site of gasexchange between leaf
and surroundings.
During day, carbon
dioxide diffuse into leaf
for photosynthesis and
oxygen diffuse out. Theguard cell regulate the
size of stomatal pore
Stomata
Each stomata consist of a
stomatal pore enclosed bya pair of guard cell
containing chloroplast
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vFine network of veins in
the leaf
Vascular
tissue
Xylem transport water and
mineral ions to the leaf
Phloem transport organic
molecule produced by
photosynthesis from leaf
to other part of plant.
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Stomata is site of gas
exchange between leaf and
surroundings. During day,
carbon dioxide diffuse into
leaf for photosynthesis and
oxygen diffuse out. The guard
cell regulate the size of
stomata pore.
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The process by
which green
plants use carbon
dioxide, water and
sunlight to make
their own food.
Photosynthesis
Click here to view equation
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Photosynthesis equation
sunlight
Carbon
dioxideWater glucose oxygen
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Chloroplast : organelle found in plant cell
and other eukaryotic organism thatconduct photosynthesis.
Carbohydrate : an organic compound
with general formula Cm(H2O)n, that is,
consisting only of carbon, hydrogen and
oxygen.Producer :The starting point for this
transfer of energy.
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CHECK ANSWER
What does the picture belowshows?
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What does the picture belowshows?
Stomata
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Why the epidermis of the layer hasto be thin as one cell?
So that it can maximse the
absorption rate of light