THEGREENWORLDseries opens doors to the world of plants. The seriesdescribes what plants are, what plants do, and where plants fit into theoverall circle of life. Plant Cells and Tissues explores the microscopic unitsthat all plants are composed of: cells. It describes how millions of cells worktogether as tissues to move materials throughout the plant body, gatherwater and minerals from the soil, and convert carbon dioxide into sugarusing energy from the sun