| A | B |
|---|
| Monocotyledons | one seed leaf |
| Dicotyledons | two seed leaf |
| Angiosperms | produces fruit; develops seeds enclosed in fruit |
| Annual | plants live one year |
| Biennial | plants live two years |
| Perennial | plants live several years |
| Epidermis | outermost layer of cell |
| Root Hair | tiny extension of single epidermal cell |
| Cortex | second layer of skin |
| Parenchyma | tissue that acts as a stroage area for food and water |
| Pericycle | tissue that gives rise to lateral roots |
| Cambium | growth tissue that producces additonal xylem and phloem cells |
| Apical Meristem | growth tissue that remains just behind the root tip |
| Root Cap | protective layer of living parenchyma cells |
| Bark | phloem tissue |
| Sink | prtion o fplant that uses or stores sugars |
| Vessel Cell | elongated cell with open ends |
| Sieve Cells | this-walled cells with sievelike plates on their end walls |
| Companion Cell | contain nucleus; helps control movement through the sieve cell |
| Petiole | stalk of the leaf |
| Transpiration | evaporation of water from stomatas in leaves |
| Guard Cells | cells which surround and control the size of the opening in a stomata |
| Mesophyll | photosynthetic tissue of a leaf |
