| Term | Definition |
| cuticle | waxy covering that protects leaves |
| epidermis | skin-like layer of cells that protect the leaves. Guard cells are found there |
| palisade layer | The tightly packed photosynthetic cell found just under the epidermis in many leaves. |
| spongy tissue layer | storage |
| veins | contain xylem and phloem, A vascular bundle in a leaf. |
| stoma (or stomata) | opening in the leaf that lets carbon dioxid come into the leaf |
| gaurd cells | control the stoma |
| chloroplasts | make food |
| monocot leaf | parallel veins |
| dicot leaves | branching veins |