Entropic Doom Light Heat

Entropic Doom encounters a detour on Earth Light Heat Photosynthesis (life)

chlorophyll converts light energy into chemical energys.

Light absorbing reactions of photosynthesis occurs in chloroplast Review

Bubbles of oxygen gas produced by photosynthesis CO2 + H2O C6H12O6 (glucose) + O2 chlorophyll Light

Starch = polymer of glucose monomers Photosynthesis: CO2 + H2O C6H12O6 + O2 chlorophyll Light

Sunlight is a mixture of Light travels in waves Sun Sunlight is a mixture of many wavelengths Fig. 8.02

White light prism White light

Shorter light waves have the more energy than longer waves High energy waves Low energy waves Shorter light waves have the more energy than longer waves

White light Green leaf looks green because it absorbs white and re-emits green light

Wavelengths that are best for photosynthesis Rate of Photo-synthesis Photosynthesis: CO2 + H2O C6H12O6 + O2 Light chlorophyll Blue and Red light most effective in photosynthesis

Respiration C6H12O6 + O2 CO2 + H2O + Heat + ATP Photosynthesis: Review Respiration C6H12O6 + O2 CO2 + H2O + Heat + ATP Photosynthesis: CO2 + H2O C6H12O6 + O2 Light chlorophyll