This document discusses the roles and responsibilities of marketing functions in Tesco, including identifying customer requirements, ensuring organizational growth and survival, facing competition, enhancing organizational profitability, meeting customer needs and demands, and offering better quality products. It also explores the interrelation of marketing roles with other departments such as human resources, finance, customer services, information technology, and production and operations. Additionally, it examines the impact of marketing in the marketing environment, including the internal and external factors that affect Tesco's business.