In this article we will discuss about:- 1. Light Reactions Evidences 2. Four Steps of Light Reaction 3. Products of Light Reaction 4. Robert Emerson’s Work & Red Drop. Light Reactions Evidences: 1) Hill’s Work with Isolated Chloroplasts: Hill (1937, 1939) and Scarisbrick (1940). If Oxidant (i.e. H-acceptor) is present with isolated chloroplast, oxidant is […]