Chapter 10, Problem 5TYU

Summary Introduction

Introduction: Photosynthesis is the process in which the chloroplast of plants capture sunlight, and converts it into chemical energy stored as sugar and other molecules. This occurs in two stages known as the light reactions (require light) and, the Calvin cycle (synthesis). During light reactions, water is split to give off oxygen, and produces ATP and NADPH. During Calvin cycle, a carbon dioxide molecule is accepted by a carbon acceptor molecule (ribulose-1, 5-bisphosphate, RuBP) and forms a six-carbon compound. This is converted into three-carbon sugars (glyceraldehyde-3-phosphate, G3P) through the oxidation of NADPH. Next, some of the G3P molecules form sugars and others regenerate to RuBP molecule.