Transcript 5.2 plant adaptation - science

5.2 Adaptations in plants
GCSE
Biology 1b Evolution and Environment
CORE
STARTER
If an elephant had
a small surface
area compared to
its volume. How
will this affect it in
hot climates?
GCSE
Why do very small
animals find it
difficult to live in
the artic?
Why are artic foxes
white in the winter?
Biology 1b Evolution and Environment
CORE
I know that plants are adapted to live in a variety of climates.
GCSE
Biology 1b Evolution and Environment
CORE
Learning objectives
KQ: How do plants store water to adapt to hot
conditions?
Know that
• Plants must be adapted to live in a variety of
climates, including deserts
• Plants must be adapted to survive being eaten by
animals by developing thorns, poisonous chemicals
and warning colours to put animals off
• There are many ways in which plants conserve
water in dry environments including, extensive
roots, waxy leaves, small leaves and water
storage in stems
• Plants lose water by evaporation through
leaves.
GCSE
Biology 1b Evolution and Environment
CORE
I know that all living things have adaptations which help them to survive
Task 1: Structure of a leaf
GCSE
Biology 1b Evolution and Environment
CORE
I know that plants lose water by evaporation through leaves.
Task 2:
Transpiration
stream
GCSE
Biology 1b Evolution and Environment
CORE
Plants must be adapted to survive being eaten by animals by developing thorns, poisonous chemicals and warning colours to
put animals off There are many ways in which plants conserve water in dry environments including, extensive roots, waxy
leaves, small leaves and water storage in stems
1.What are you investigating?
2.How will you investigate this?
3.How will you record your
results?
4.How will you
communicate what
you have discovered?
GCSE
Biology 1b Evolution and Environment
CORE
Task 5: Plant adaptations in
the Desert
• Plants like cacti have
adaptations such as very deep
or wide root systems to
collect as much water as
possible.
• Plants that live in dry areas
also need adaptations to
reduce the amount of water
they lose
•
GCSE
Draw a diagram and
illustrate with words how
plants are adapted to
different environments
• They lose water through tiny
holes (stomata) in their leaves
when they make food by
photosynthesis.
Biology 1b Evolution and Environment
CORE
There are a few desert plants with
broad leaves and hence a large SA.
These leaves curl to catch any dew
in the cold evenings, which is then
funnelled to their shallow roots.
Other plants in dry environments
have curled leaves which reduces
the surface area and traps a layer
of moist air around the leaf which
reduces the amount of water they
lose by evaporation.
GCSE
Biology 1b Evolution and Environment
CORE
Most plants that live in dry
environments have a reduced
surface area. Why?
What other leaf characteristics are
good for desert living?
Why do plants need water?
How do plants lose water from their
leaves?
Why do plants often reduce the SA
of their leaves to help them prevent
water loss?
GCSE
Biology 1b Evolution and Environment
CORE
GCSE
Biology 1b Evolution and Environment
CORE
Three adaptations of plants
1.Leaf (size, shape etc)
2.Water storage methods
3.Keeping animals away
GCSE
Biology 1b Evolution and Environment
CORE
1.Where might small plants find it
difficult to receive enough light?
2.State 3 ways a plant might
conserve water.
3.How do animals know not to eat
certain plants?
GCSE
Biology 1b Evolution and Environment
CORE
Learning objectives
KQ: How do plants store water to adapt to hot
conditions?
Know that
• Plants must be adapted to live in a variety of
climates, including deserts
• Plants must be adapted to survive being eaten by
animals by developing thorns, poisonous chemicals
and warning colours to put animals off
• There are many ways in which plants conserve
water in dry environments including, extensive
roots, waxy leaves, small leaves and water
storage in stems
• Plants lose water by evaporation through
leaves.
GCSE
Biology 1b Evolution and Environment
CORE
Animal adaptations in the
Desert
• Lizards are adapted to the desert…..
• Their special features are …
GCSE
Biology 1b Evolution and Environment
CORE
Adaptations to the Ocean
• Killer whales are adapted to the ocean…..
• Their special features are …
GCSE
Biology 1b Evolution and Environment
CORE
Adaptations to the Ocean
• Fish are adapted to the ocean…..
• Their special features are …
GCSE
Biology 1b Evolution and Environment
CORE
Adaptations in a woodland
• Which types of animals live I the woodland?
• What features would they need to survive?
GCSE
Biology 1b Evolution and Environment
CORE
Learning objectives
• State materials organisms need from
their surroundings to survive
• Describe adaptations of some
organisms to their environment
• Explain how plants can survive in
areas of limited water
GCSE
Biology 1b Evolution and Environment
CORE