| A | B |
| stems | serve as framework and support to position leaves |
| leaves: | primary location for photosynthesis |
| meristem | give rise to all other cells of plant |
| ground meristem | produces ground tissue |
| protoderm | produces epidermis |
| procambium | produces primary vascular tissue |
| lateral meristems | secondary growth initiated by |
| cork cambium | cork cells in bark of woody plants (outer bark) |
| vascular cambium | secondary vascular tissue |
| PLANT TISSUES AND CELL TYPES=A. 3 basic tissues | dermal tissue, ground tissue, vascular tissue |
| guard cells | paired cells flanking a stoma |
| trichomes | hair like epidermal outgrowths |
| root hairs | single cells found near root tips |
| ground tissue | primarily parenchyma cells |
| parenchyma cells | most abundant cells of primary tissues |
| collenchyma | living at maturity (usually long-lived) |
| sclerenchyma | thick, tough secondary walls |
| lignin | highly branched polymer that reinforces structure |
| fibers | long, slender, usually grouped in strands |
| sclereids | variable in shape; often branched; single or in groups |