1. Photosynthesis: Pigments and the Light Reaction
Chapter 4

2. Visible Light Spectrum
Humans can see colors from nm.
That means Violet, Indigo, Blue, Green, Yellow, Orange, Red
The color you see is what the object DOES NOT absorb (reflected)

3. Light and Pigments Chloroplasts contain pigments
Pigments: absorb light energy
Different colored pigments absorb different colors of light

4. Absorbed vs. Reflected What does the car look black?
Why does a leaf look green?
The car paint pigment absorbs ALL colors, reflects nothing
Chlorophyll in the leaf absorbs all colors EXCEPT Green