LEAVE STRUCTURE Flashcards
1
Q
WAX CUTICLE
A
- protective layer on top of the leaf, prevents water from evaporating
2
Q
UPPER EPIDERMIS
A
- thin and transparent to allow light to enter palisade mesophyll
3
Q
PALISADE MESOPHYLL
A
- tightly packed with chloroplasts to absorb more light, maximizing photosynthesis
4
Q
SPONGY MESOPHYLL
A
- contains internal air spaces that increase the surface area to volume ratio for the diffusion of gases ( mainly carbon dioxide )
5
Q
LOWER EPIDERMIS
A
- contains guard cells and stomata
6
Q
GUARD CELL
A
- absorbs and loses water to open and close the stomata to allow carbon dioxide to diffuse in, oxygen to diffuse out
7
Q
STOMATA
A
- where gas exchange takes place, opens during the day, closes during the night
