Photosynthesis is the process by which plants convert
1. I _ _ _ _ into chemical energy stored in 2. f _ _ _ . It is divided into light reaction phase and

3. _a_ _reaction phase.

In the first reaction phase, water is split into 4._y_ _ _ _ _e_ and

5. _ _ _ _ e_. The reaction is rapid and requires direct light. While in the second reaction phase, it is slow and can take place even in the absence of light. This reaction requires to proceed immediately after light reaction. The process of
6. _ h_ _ _s_ _ _ _ e _ _ _ takes place in the 7. t _ _ _ _ _ _ _ _ of the chloroplast. Photons of light released supply energy for the combination of molecules of 8. _a_ _ _ and

9. _ a _ _ _ n_ i _ _ _ _ _ resulting in the compound substance
10. _ _r_ _ _ _ _ _ r _ _ _. When a molecule of water splits, oxygen is released. ​