Answer:
The correct order is as follows-
1) Light penetrates the chloroplast.
2) The water molecule undergoes splitting.
3) Oxygen is expelled as a byproduct.
4) Electrons shift from PSII to PSI.
5) ATP and NADPH are generated.
Explanation:
Photosynthesis consists of a series of complex reactions occurring in two stages: the light-dependent reactions and the light-independent reactions.
In the light-dependent reactions, light is captured by the chloroplast's photosystems. The light energizes an electron that is lost from the chloroplast, initiating the electron transport chain.
This loss of electrons triggers the breakdown of water, producing oxygen. The electrons then travel from PS II to PS I, culminating in the production of ATP and NADPH that are essential for the light-independent reactions.
Therefore, the sequence provided is the accurate response.