| A | B |
|---|
| parenchyma | living tissue that consists of large, loosely packed, roughly cube-shaped cells with thin cell walls that are involved in food storage, wound healing and photosynthesis |
| collenchyma | living tissue that is made up of elongated cells with unevenly thickened, flexible walls, they support the growing regions of the plant |
| sclerenchyma | at maturity is made up of walls of dead cells, supports and stregthens the plant |
| xylem | conducts water and minerals |
| phloem | conducts food and sugar |
| epidermis | the outer layer of cells that is covered with a waxy cuticle |
| cork | a dermal tissue that covers and protects the edidermis |
| vascular cambium | produces addition vascular tissue |
| cork cambium | produces cork |
| tap root | a primary roots that remain the longest root |
| fibrous root | small roots that develop and remain near the top of the soil |
| spring wood | secondary xylem with cells that are wide and thin walled |
| summerwood | smaller cells with thicker walls |
| heartwood | dark inner wood |
| sapwood | light outer wood |
| stomata | they regulate the passage of gases into and out of the plant |
| root hairs | young roots often form extensions |
| root cap | a shield that covers the apical meristem |
| transpiration | the loss of water by evaporation from the leaves and stems |
| cohesion | the bonding of water molecules together |
| pressure flow hypothesis | an explanation of the movement of sugars in the phloem of plants |
| lateral meristem | increase circumference of a plant |
| apical meristem | increase legnth of a plant |
| transpiration-cohesion theory | water may move up a plant because it is a cohesive fluid |
