Consider the following events of photosynthesis. 1. Light energy excites electrons.
2. Water molecules are split.
3. NADPH is formed.

In which locations do each of these events occur?
1. photosystem II
2. photosystem I
3. photosystem I
1. photosystem II
2. photosystem II
3. photosystem I
1. photosystem I
2. photosystem I
3. photosystem II
1. photosystem I
2. photosystem II
3. photosystem II