Photosynthesis Objective 2: The student will demonstrate an understanding of living systems and the...
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Photosynthesis
Objective 2:The student will demonstrate an
understanding of living systems and theenvironment.
(7.8) Science concepts. The student knows that complex interactions occur between matter and energy. The student is expected to:
(B) identify that radiant energy from the Sun is transferred into chemical energy through the process of photosynthesis.
http://www.homestead-farm.net/art/kidsArt/photosynthesis-color.jpg
Photosynthesis
• Photosynthesis changes light energy into food (chemical) energy.
http://www.eia.doe.gov/kids/energyfacts/sources/renewable/images/photosynthesis1.gif
Photosynthesis
• Begins with (reactants):– Sunlight (radiant energy)
– Water (from the ground)
– Carbon dioxide (from the air)
Photosynthesis
• Ends with (products):– Oxygen
– Glucose• Stored chemical energy
http://curriculum.calstatela.edu/courses/builders/lessons/less/les4/les4gifs/glucose.gif
Photosynthesis
Reactants Products
CO2 + H2O + light C6H12O6 + O2
From the air
Water taken up by roots
Energy(sunlight
)
GlucoseEnergyFuel
Oxygen
http://www.tomatosphere.org/EngManual/images/photo_equation1.jpg