Question

leaf cross section match the structure to the correct term. (2.5 pts. each)
50.
51.
52.
53.
54.

a. palisade mesophyll b. cuticle c. epidermis d. stoma/stomata e. intercellular spaces ab. guard cells ac. spongy mesophyll

Explanation:

• 50: The outermost layer of the leaf cross - section is the epidermis. It provides protection.
• 51: The cuticle is a waxy layer on top of the epidermis (not always visible in all cross - sections but in this case, if we assume the topmost non - cellular layer is considered).
• 52: Intercellular spaces are the air spaces between the mesophyll cells (here, between palisade and spongy mesophyll).
• 53: Spongy mesophyll has a more irregular cell shape with larger intercellular spaces compared to palisade mesophyll.
• 54: Stomata are the pores (holes) in the leaf epidermis, usually surrounded by guard cells.

Answer:

1. c. epidermis
2. b. cuticle
3. e. intercellular spaces
4. ac. spongy mesophyll
5. d. stoma/stomata