Chapter 5.4, Problem 2MC

Summary Introduction

To explain:

The role of water’s in the light reaction.

Concept introduction:

The light reactions take place in the thylakoid membrane of chloroplast where the two photosystem units are present. In the light reaction of photosyntesis, light first strike to photosystem unit I where ${\text{2e}}^{\text{-}}$(two electrons) is released and then these electrons transferred to photosystem II. This resulted in the formation of ATP and NADPH as an end product of light reaction.