Ground tissue is a type of plant tissue that makes up most of a plant's body. It is responsible for various functions, including photosynthesis, storage, and support. Ground tissue is primarily composed of three types of cells: parenchyma, collenchyma, and sclerenchyma, each serving different roles in the plant's growth and development. In leaves, ground tissue contains chloroplasts, allowing for photosynthesis, while in roots, it often stores nutrients and water. The structure and composition of ground tissue can vary depending on the plant's needs and environment, contributing to the overall health and functionality of the plant.