Photosynthesis

1
Photosynthesis

• or
• How Plants Make Food

2
Energy from the Sun is necessary to begin the
process.
Besides green plants, some algae and bacteria can
also make their own food.
3
Radiant energy from the Sun, in the form of
light, begins photosynthesis.
Chlorophyll must also be present.
4
Water is taken into the plant by the roots and
carried to the leaves through the xylem .
Xylem is a series of tubes.
5
Carbon dioxide gas (CO2) is taken into the plant
through the stomata on the underside of leaves.
6
Oxygen gas (O2) is released into the atmosphere
through the stomata on theunder side of leaves.
7
Water vapor is released into the atmosphere
through the stomata on the leaves.
This process is called transpiration.
8
Review the process.
Explain each step as it is shown.
9
Remember, this process is continuous in light.