Plant tissue refers to groups of cells that work together to perform specific functions in plants. There are two main types of plant tissue: meristematic tissue, which is responsible for growth, and permanent tissue, which has specialized functions. Permanent tissue can be further divided into simple tissues, like parenchyma and sclerenchyma, and complex tissues, such as xylem and phloem. Xylem transports water and nutrients from the roots to the rest of the plant, while phloem distributes sugars produced during photosynthesis. Together, these tissues support the plant's structure, facilitate growth, and enable essential processes like nutrient transport and storage.