1. 8-2 Photosynthesis Photo means light Synthesis means putting together
INTERACTIVE: pgs

2. Investigating Photosynthesis
Van Helmont
Concluded trees gain mass from water not the soil
Priestley
Discovers that plants release oxygen
Ingenhousz
Determines plants need light to produce oxygen

3. The Photosynthesis Equation
OIL RIG
Oxidation is Loss
Reduction is Gain

4. Photosynthesis
Uses energy of sunlight to convert water and carbon dioxide into high energy sugars and oxygen.
2 Parts: Light Dependent Reactions and Calvin cycle

5. Light and Pigments Plants absorb light energy with pigment molecules
Energy is transferred to electrons in the pigment raising the overall energy level
The primary pigment in green plants is Chlorophyll
Type a- blue-violet and red light
Type b- blue and red
Accessory pigments red and orange- carotene

7. Why are leaves green?