1. Plant cross-section

2. Lower epidermis- protects bottom of leaf
Mesophyll- cells that make up the spongy and palisade parts of the interior of leaves
Upper epidermis- protects upper part of leaf
Cuticle- waxy layer of lipids that protects the top of the leaf
Spongy layer- spongy layer with air spaces

3. Xylem- water carrying tissue
Phloem- food carrying tissue

4. Guard cells- open and close the stomates
Stomate- site of CO2 and O2 (gas) exchange

5. Palisade Layer- cells where most photosynthesis occurs
Chloroplasts- (found in palisade cells) sites of photosynthesis

6. Veins (fibrovascular bundle)- Inside the vascular bundle are tubes that transport materials from place to place in the plant