| A | B |
|---|
| First structure to emerge from the seed | Root |
| Thin fingers which absorb water from the environment | Root Hairs |
| Cells at the root tip divide rapidly in this area | Area of Differentiation |
| Water passes from cell to cell deep into the root unitl it reaches this | Vascular Channels |
| Hollow tubes that make up vascular channels | Xylem |
| Many thin roots that expand into the soil from the base of the plant | Fibrous Root |
| One or more large roots extending into the soil | Taproot |
| The mass of cells at the tip of the root | Root Cap |
| Where root cells are actively dividing | Root Tip |
| Cells here have nuclei and are still growing | Zone of Elongation |
| Cells here are large, but now have root hairs | Zone of Maturation |
| Responsible for gas exchange and photosynthesis | Leaves |
| Top and bottom of a leaf | Epidermal Cells |
| Openings in the leaf structure in the leaf surface that connect the spaces inside the leaf to the outside environment | Stomates |
| Surround the stomates, open and close them to regulate things coming in and out | Guard Cells |
| Caused by gravity | Geotropism |
| Caused by light | Phototrophism |
| Caused by water | Hydrotrophism |
