Photosynthesis
or
How Plants Make Food
Energy from the Sun is
necessary to begin the
process.
Besides green plants, some algae and
bacteria can also make their own food.
Radiant energy from the Sun,
in the form of light, begins
photosynthesis.
Chlorophyll must also be present.
Water is taken into the plant
by the roots and carried to
the leaves through the xylem .
H20
H20
H20
Xylem is a
series of
tubes.
Carbon dioxide gas (CO2) is
taken into the plant through
the stomata on the underside
of leaves.
H20
H20
H20
Oxygen gas (O2) is released
into the atmosphere through
the stomata on the
under side of leaves.
O2
O2
O2
H20
H20
H20
Water vapor is released into
the atmosphere through the
stomata on the leaves.
This process is called transpiration.
Review the
process.
O2
O2
O2
H20
H20
H20
Explain each step as it is shown.
Remember, this process is
O
continuous in
light.
2
O2
O2
H20
H20
H20