| A | B |
| taproot | one main root that grows deep; carrot |
| fibrous root | several roots that spread out and grow close to the surface; dandelion |
| epidermis | layer of cells on the surface |
| root hairs | cells that increase the surface area for absorbing water and minerals |
| vascular tissue | tissue that transports water and minerals in a plant |
| xylem | vascular tissue that transports water and minerals in the plant |
| phloem | vascular tissue that transports sugar molecules in the plant |
| root cap | group of cells at the tip of the root that protect the tip and produce a slimy substance that helps the root push through the soil |
| herbaceous stems | stems that are soft, thin, flexible |
| woody stems | stems that are rigid and made of wood and bark |
| growth ring | a ring of xylem cells that tell the yearly growth of woody stem plant |
| cuticle | waxy layer that coats the surface of plants to keep them from drying out |
| non-vascular plant | plants that lack specialized conducting tissue, true roots, stems and leaves |
| vascular plant | a plant that has specialized tissue to conduct materials from one part of the plant to another |
| gymnosperm | a woody, vascular plant whose seeds are not enclosed in an ovary or fruit |
| angiosperm | a floweing plant that produces seeds within a fruit |
| rhizoid | a root-like structure that holds plants in place |
| rhizome | an underground stem that produces new leaves, shoots and roots |
| pollen | tiny granules that contain the male gameotphyte |
| stomata | tiny openings in the leaf epidermis that allow carbon dioxide to enter |
| sepal | outer most ring of modified leaves that protect a flower |
| petal | one of the rings of the usually brightly-colored leaf-shaped parts of a flower |
| stamen | the male reproductive structure of a flower that produces pollen and is made up of the anther and the filament |
| pistil | the female reproductive part of the flower that produces seeds and is made up of the ovary, style and stigma |
| ovary | the lower part of the pistil that produces eggs in ovules |