1. Photosynthesis

4. Light Reactions: Photosystem II
Light strikes photsystem II
The light also causes a water molecule to split.
An electron from the water moves into the E transport system, moving through the membrane electron carriers
the H+ moves into the thylakoid space (inside the membrane)
O2 is released as a waste product.

5. Electron Transport Chain
The electron acceptor molecules transfer the electrons through the membrane
Protons (H+) are pumped into the thylakoid space by the from the stroma.

6. The Light reactions

7. Photosystem I
The electrons reach Photosystem I and are re-energized forming the energy storage molecule (intermediate) NADPH (later to be turned into ATP)

9. Chemiosmosis
Protons accumulate in the thylakoid space during Photosystem II (breakdown of water and pumping in of protons).
Creates a concentration gradient.
Protons move through the ATP Synthase channels (enzymes) and form ATP in the stroma of the chloroplast.

10. Overall Light Reaction
Photosystem II:
In: Water and Light
Out: electons to chain, protons in thylakoid, O2 out
Photosystem I:
-In: Electrons from Photosystem I and NADP in carriers
-Out: NADPH for dark reaction and ATP in stroma

11. Dark Reaction: Calvin Cycle
A series of reaction that use carbon dioxide to produce glucose
NADPH provides Hydrogen for the cycle
ATP provides energy for the cycle
Glucose is produced!