| A | B |
| bark | the region to the outside of the xylem in a tree trunk |
| cellulose | component of the plant cell walls |
| fiber | long, narrow, thick-walled cell that can be made into rope |
| wood | a collection of xylems |
| cork | produced by the cork cambium |
| epidermis | the outermost tissue of leaves, young roots, and young stems |
| turgor pressure | caused by the pressure of water inside plant cells |
| phloem | conducts sugar solution |
| xylem | made primarily of long, hollow cells that transport water |
| angiosperms | the plant group known as the flowering plants |
| gymnosperms | the plant group having seeds that are not completely covered |
| vascular tissue | term for plants that have water-conducting tissue |
| bryophytes | the plant group that contains true mosses |
| palisade layer | Layer that makes most of the plants food |
| cuticle | The covering that prevents water loss |
| Ferns | require water for reproduction to occur |
| angiosperms | largest group of plants |
| cuticle | a waxy substance secreted by the epidermis |