1. PHOTOSYNTHESIS Do Now: What is an autotroph?

2. Quick Recap: ALL energy to support life comes from:
Th Sun (solar energy)

3. Energy comes from the sun then ( don’t write)…
Autotrophs:
Convert the sun energy to chemical energy
PRODUCERS
Heterotrophs
Consume the chemical energy to get energy
CONSUMERS

4. Photosynthesis: Uses energy from the sun
To create energy as Sugar (glucose)
Sunlight + water + carbon dioxide  oxygen + glucose
Energy H2O CO  O C6H12O6

5. Where does Photosynthesis take place?
Takes place in the CHLOROPLAST
thylakoids:
Location of Light Reaction
Absorbs sunlight using chlorophyll (pigment that reflects green light)
Stroma:
Compare to cytoplasm of cell.
Jelly-like substance that surrounds thylakoid
Location of Calvin Cycle
thylakoids
Stroma
Grana = stack of thylakoids

7. The two main stages of photosynthesis are…
Light Reaction
Calvin Cycle
(AKA Dark Reaction).
Two reactions are connected through
ATP
NADPH
Each fuels the other

8. The light reaction: First stage of photosynthesis- chlorophyll absorbs light energy
LOCATION:
thylakoid membrane
WHAT GOES IN?
Water
Sunlight
WHAT COMES OUT?
Oxygen
WHAT IS GIVEN TO CALVIN CYCLE?
ATP and NADPH

9. Calvin Cycle (Dark Reaction): uses energy making molecules from Light Reaction to make sugars
LOCATION:
Stroma: (fluid surrounding thylakoids)
WHAT GOES IN?
Carbon Dioxide
WHAT COMES OUT?
Sugars
Glucose