6.4/6.5 Structure And Water Loss Of A Plant Flashcards
1
Q
What factors affect rate of transpiration and how do they do it?
A
Humidity- Weaker conc gradient
Temp- Faster evaporation
Wind speed- Stronger conc gradient
Number of stomata
Light intensity- Stomata open more
2
Q
How do the guard cells open and close?
A
Ions go into the cell- water moves out and closes
Also requires light to open
3
Q
How are plants adapted for diffusion?
A
Air gaps in spongy mesophyll
Large surface area
Thin
4
Q
What cells do photosynthesis in the leaf?
A
The palisade mesophyll
5
Q
What is a xerophyte?
A
A plant that lives in dry conditions
6
Q
What adaptations do plants have to retain water?
A
Fewer stomata
Rolled leaves
Thick cuticle
Sunken stomata
Stomata hairs
