6.4 Gas Exchange In The Leaf Of A Plant Flashcards
1
Q
What are some adaptations for rapid gaseous diffusion in plant leaves?
A
- many stomata, diffusion pathway is short
- air gaps between mesophyll, so gases can be in contact easily with them
- large surface area of mesophyll for rapid diffusion
2
Q
What cells can open and close stomata?
A
Guard cells
3
Q
What is the structure of a leaf?
A
- upper/lower epidermis
- waxy cuticles
- spongy/palisade mesophyll
- stomata/guard cells
- air spaces
