1. Daily Warm-up Wednesday, October 20th
Why is ATP such a good energy donor, but not good for energy storage? HW: -Read 8.2 Turn in: -Lab notebook -Daily warm-up (last chance)

2. Photosynthesis Light- visible is a spectrum
Pigments: light-absorbing molecules
Help plants to capture light
What is main pigment in plants?
Plants would not grow well under green light

3. Why do we see a change in color in the leaves?
Green color usually overwhelms other pigments. When temperatures drop in the fall, chlorophyll breaks down and allows other pigments to show through.

4. Location of Photosynthesis
Chloroplast
Thylakoid
Stroma

5. Energy Transfer Sunlight excites electrons in chlorophyll
Electron carriers
NADP+ Holds electrons and an H- NADPH

6. Photosynthesis
Need to know reactants and products

7. 2 Stages of Photosynthesis
Light-dependent reaction
Takes place in thylakoids
Requires water as electron donor
Oxygen is released as a byproduct
Light-independent reaction
Sugars produced
Takes place in stroma (fluid within chloroplast)

9. Light-Dependent Reactions
Needs sunlight
Produces water
Makes ATP and NADPH
Occurs in the thylakoids
Photosystems
Photosystem is cluster of proteins and chlorophyll

11. Light-Independent aka Calvin Cycle
Uses ATP and NADPH from light-dependent stage to make sugars.
CO2 is used here to make sugar.
ADP and NADP+ go back to the light-dependent stage after they have donated energy