| A | B |
|---|
| compound leaf | leaf with multiple blades |
| cuticle | top of the leaf, waxy non-cellular layer |
| dichotomous venation | spreading vein pattern |
| epidermis | skin-like layer of cells found on both the top and bottom surface of the leaf |
| guard cells | controls the opening and closing of the stomata |
| leaf blade | main sun collecting structure on the leaf - large broad flat surface |
| midrib | main vein running down the center of the leaf |
| netted veins | veins in a branching pattern |
| palisade mesophyll | standing cells responsible for most of the photosynthesis |
| parallel veins | veins on the whole leaf will NOT cross each other |
| petiole | structure that holds the blade away from the stem (leaf stem) |
| pinnately netted | some leaves with netted veins have several smaller veins branching out of a dominant vein from the petiole |
| simple leaf | leaf which has only one blade on its petiole |
| spongy mesophyll | forms air spaces which hold raw materials used and products of photosynthesis |
| stomata | holes for gas exchange on the lower epidermis |
