1687434
Description
Mind Map by eleanor.brown199, updated more than 1 year ago
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Created by eleanor.brown199
about 10 years ago
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Xerophytic plants
- Xerophytic plants are adapted to live in dry condition.
- Adaptations
- Thick waxy cuticle
- Prevents the movement of water out of the leaves.
Creating a shining surface to reflect the heat and
create a lower temperature.
- Prevents the movement of water out of the leaves.
Creating a shining surface to reflect the heat and
create a lower temperature.
- Sunken stomata
- The stomata are often sunk into pits.
This means moist air can get stuck
and creates a longer pathway for
diffusion also in turn reducing the
rate of evaporation.
- The stomata close when there is little water,
therefore reducing the chance of evaporation.
- The stomata is the space that is
created between guard cells. For
gaseous exchange.
- The stomata are often sunk into pits.
This means moist air can get stuck
and creates a longer pathway for
diffusion also in turn reducing the
rate of evaporation.
- Leaf rolled with stomata inside
- The inner surface of the rolled
leaf is covered in hairs, this traps
the moisture and reduces
transpiration. This also creates a
smaller surface area and it means
that wind doesn't have the same
drying effect that it usually does.
- The inner surface of the rolled
leaf is covered in hairs, this traps
the moisture and reduces
transpiration. This also creates a
smaller surface area and it means
that wind doesn't have the same
drying effect that it usually does.
- Small leaves
- Usually needle shaped leaves with a circular cross
section. reducing surface area and therefore reducing
the area at which evaporation can take place. They
also protect the plant from animals, create shade and
collect any moisture.
- Usually needle shaped leaves with a circular cross
section. reducing surface area and therefore reducing
the area at which evaporation can take place. They
also protect the plant from animals, create shade and
collect any moisture.
- Extensive shallow root system
- They are mostly circular,
which allows for quick
absorption of large
amounts of water.
- They are mostly circular,
which allows for quick
absorption of large
amounts of water.
- Spongy mesophyll
- They are more densely packed,
so it reduces the area to where
the air is exposed to inside the
rolled leaf. This means that less
water has the chance to
evaporate.
- They are more densely packed,
so it reduces the area to where
the air is exposed to inside the
rolled leaf. This means that less
water has the chance to
evaporate.
- Thick waxy cuticle
- Marram grass
- Water potential
- Water potential in Xerophytes is low
because of the adaptations they have
made to stop the evaporation of water.
- Water potential in Xerophytes is low
because of the adaptations they have
made to stop the evaporation of water.
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