Xerophytes Flashcards
1
Q
Xerophytes are…
A
plants that live in places where water is in short supply. Many of them have evolved special adaptations of their leaves to reduce the water loss.
2
Q
The leaves can roll up…
A
due to shrinkage of hinge cells, exposing a thick waxy cuticle to the air outside. The stomata then open into enclosed humid space in the middle of the roll.
3
Q
Cactus has flattened…
A
photosynthetic stems that store water.
4
Q
Catus’s leaves reduced…
A
to spines, which decreases the surface area and protects the plant from being eaten by animals.
5
Q
Trichomes are tiny…
A
hair-like structures that act as a physical barrier to the loss of water by trapping a layer of moist air close to the leaf surface.
6
Q
Photosynthetic stems are covered with…
A
a thick layer of waxy cuticles.
