Molecular Biology: Calcium and Cell Function, Volume VI deals with several topics relating to calcium and cell function. This book consists of nine chapters. Chapter 1 describes the various peptides that recognize calmodulin in a calcium-dependent fashion. Chapter 2 updates the molecular and regulatory properties of calmodulin-dependent phosphodiesterase, while Chapter 3 reviews a calmodulin-dependent protein phosphatase. The studies on the biophysical characterization of calmodulin are summarized in Chapter 4. In Chapter 5, the studies on a calcium-dependent protease from human erythrocytes are presented. The problem of an uncontrolled level of calcium that often precipitates toxic consequences is considered in Chapter 6. The role of calcium in meiosis is elaborated in Chapter 7, followed by a discussion on calcium ion involved with the secretory process, emphasizing the secretion of insulin in Chapter 8. The last chapter deliberates the role of photosynthesis, a process that captures the solar energy and sustains all living systems. This publication is a good reference for biologists, medical practitioners, and students researching on the relation of calcium to the physiology and biochemistry of organisms and cells.