Last Minute Lecture

Light Reactions of Photosynthesis: Electron Flow, ATP Formation, and Energy Capture | Chapter 10 of Plant Physiology and Development Chapter 10 of Plant Physiology and Development explores the light-dependent reactions of photosynthesis—processes that convert sunlight into the chemical energy that fuels plant metabolism. These reactions occur in the thylakoid membranes of chloroplasts, where pigment molecules absorb photons, initiate electron transport, and drive the synthesis of ATP and NADPH. This chapter explains the structure and function of photosystems, the Z scheme of electron flow, proton motive force generation, photoprotection mechanisms, and how plants regulate energy balance under changing environmental conditions. To reinforce your understanding, watch the complete Last Minute Lecture summary below. Watch the full chapter breakdown here: Chloroplast Structure and the Thylakoid Architecture The light reactions take place within the thylakoid membrane system of c...