1. November 13, 2012
Write out the overall reaction of photosynthesis

2. Announcements

3. Review of Photosynthesis
At your tables pull out your notes and come up with answers to these questions.
What is Photosynthesis?
Where does the mass of a plant come from as it grows?
What are the reactants of Photosynthesis (what goes in)? What are the products (what comes out)?

4. How does photosynthesis really work?
Plants capture sunlight using light absorbing molecules called pigments.
Chlorophyll: is found in chloroplast, is the principal pigment for capturing sunlight.

5. Chlorophyll
There are two types of chlorophyll (A and B) and each captures different wave lengths of UV light.

6. Photosynthesis can be broken up into three steps
Light dependent reactions
Electron Transport Chain
Light independent reactions (Calvin Cycle)

7. The anatomy of a Chloroplasts
Thylakoids are saclike membranes which contain the chlorophyll. These are arranged in stacks called grana.
This is where the light-dependent reactions occur.

8. Chloroplast anatomy
The stroma is the region outside the thylakoid membranes. This is where the light-independent reactions take place.

9. Light-Dependent Reactions
Light-dependent reactions require light to function, and produce three major products.
Oxygen
ATP
NADPH

10. Products of the Light-dependent reactions
These products are used to conduct the processes in the light-independent reactions.
Light-dependent

11. ATP
ATP is a unit of cellular energy responsible for transferring energy within the cell for metabolism

12. NADPH
This is an electron carrier used to transfer energy.

13. Electron Transport Chain
Electron transport chains are the cellular mechanisms used for taking energy from sunlight.
This requires electron
Carriers like NADPH

14. Light-independent Reactions
Light-independent reactions take place in the stroma, outside of the thylakoid membrane
The Calvin Cycle uses ATP NADPH from the previous reactions to produce high-energy sugars.

15. Calvin Cycle
Begins with six CO2 molecules and ATP to create a six carbon sugar (C6H12O6).
Calvin Cycle