Transcript TMcKoyTalk3.ppt

Photosynthesis
Travis Mackoy
What is Photosynthesis?
• Photosynthesis is the
process by which
green plants
manufacture
carbohydrates out of
carbon dioxide and
water in the presence
of light.
Chlorophyll
• Accessory pigments transfer energy to
chlorophyll.
• Chlorophyll contains metallic ring and
proteins.
• Metal and energy result in photoelectric
effect.
Photoelectric Effect
• E=h*1/v
Photo-systems II
Uses 680 nm light
Water Splitting
+
H2O 2 H + 2 electrons + 1/2 O2
Photo-system I
Uses 700 nm light
Calvin Cycle: Dark Reaction
C5 + CO2 + ATP + NADPH ---> C6H12O6