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Photosynthesisor
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 .
H20H20 H20
Xylem is a series of tubes.
Carbon dioxide gas (CO2) is taken into the plant through the stomata on the underside of leaves.
H20H20 H20
CO2
CO2
CO2
Oxygen gas (O2) is released into the atmosphere through the stomata on theunder side of leaves.
H20H20 H20
O2
O2
O2
Water vapor is released into the atmosphere through the stomata on the leaves.
H 20
H 20
H2 0
This process is called transpiration.
H20H20
H20
CO2
CO 2
CO
2
O2
O2
O2
H 20
H 20
H2 0
Review the process.
Explain each step as it is shown.
H20H20
H20
CO2
CO 2
CO
2
O2
O2
O2
H 20
H 20
H2 0
Remember, this process iscontinuous inlight.
Photosynthesis
Photosynthesis
Is absorbed through the stomata
Is released through the stomata
CHLOROPHYLLtraps light energy to make food
Is absorbed through the roots
chlorophyll
Glucose
Formula Explanation
Chlorophyll