Transcript Plant Adaptations

PLANT ADAPTATIONS
Talk about the plant parts
you see in front of you.
What adaptations of roots,
stems, leaves, flowers, fruits
and seeds allow the plants
to meet their needs in their
habitats?
Plant Adaptations
Roots
•Tap root
(like a
carrot –
dandelion –
pine tree)
•Fibrous
root (looks
like hair grass)
•Bulb (tulip)
Stems
•Vines
• Woody
with bark
• Nonwoody and
flexible
•Briars
Leaves
•Thick and
waxy evergreen
•Color
•Thin –
deciduous
– leaves
fall in
autumn to
avoid
freezing
•Size
•Tendrils
•Prickly
•Shallow
•Gutters
•Deep
Flowers
•Scent
•Shape
Fruit/Seeds
•Fruit –
colorful,
fragrant, and
protect the
seed
•Seeds –
disperse by
wind, water,
or animals
•Germinate
with warmth
and moisture
•Store energy
for
germinating
plant
Plant
Adaptations
Plants have traits, or adaptations,
that allow them to meet their needs
in a specific habitat.
How do
adaptations help
plants survive in
their habitats?
Root
Adaptations
Root Adaptations
Roots take in water and nutrients from the soil
and hold the plant in place. Roots also store
food and water.
Water lilies have deep roots
that can reach down into
the mud of the pond.
Some cacti have roots close to
the surface for living in dry
habitats. Their short, shallow
roots take up water quickly from
the habitat.
Carrots and dandelions have one long
thick root, called a tap root.
1.Anchors the plant in the soil.
2.Reaches far down to absorb water.
Dandelion Root
Carrot root
Stem
Adaptations
Stem Adaptations
Stems move and store water and nutrients
in the plant. Stems also provide support
and protection for the plant during its life
cycle.
Vines have
stems that can
climb so that the
leaves are
exposed to light.
Stem Adaptations
Some stems have briars
to deter animals from
eating the leaves.
Some stems
have tendrils to
help climb
toward light.
Stem Adaptations
Corn and sunflowers have stems that
grow thick and strong but are still
green and flexible so that they can
grow toward the sun.
Stem Adaptations
Trees develop woody stems to support
their size and offer protection during their
long life cycles.
Stem Adaptations
Cacti have thick stems that store
water when the habitat does not
provide it.
Leaf
Adaptations
Leaf Adaptations
Leaves use light to make food. Each
variety of plant will survive where its leaf
size, texture, thickness, and shape are
adapted to the habitat. Different kinds of
plants have different sizes and shapes of
leaves.
Leaf Adaptations
Water lilies grow wide leaves . The wide
leaves float on the water. The leaves capture
sunlight to make food.
Leaf Adaptations
Most evergreen trees have leaves that are
thick and waxy or needle-like. This protects
them from freezing and from losing water.
Leaf Adaptations
Deciduous trees usually have leaves
that are thin. When temperatures cool in
fall, the leaves are shed. This prevents
the tree leaves from bursting in the cold
temperatures.
Giant kelp uses gas-filled floats to keep
the plant suspended, allowing the kelp
blades near the ocean surface to
capture light for photosynthesis.
Flower
Adaptations
Flower Adaptations
Flowers often
have special
sizes, smells,
shapes, or colors
that attract
organisms for
pollination.
Tomato
Morning glory
Fruit Adaptations
Fruits are formed
around the seeds to
protect them. Some
fruits are moist and
fleshy (tomatoes,
grapes, or peaches).
Others fruits are dry
and hard (for
example, coconuts,
walnuts or pea pods).
Seed
Adaptations
Seed Adaptations
Some seeds germinate as
soon as conditions allow.
Seeds have adaptations that allow them to be
dispersed.
Seeds have enough food for the plant
until it begins making food of its own.
Explosive Seed Dispersal!
https://www.youtube.com/watch?v=Zps8BrwQBEM
https://www.youtube.com/watch?v=48YAHg-kY10
Job - take in water, air, and sunlight
to make sugar (food)
-----------------------------------------------
•_________ and waxy – evergreen
•_________ – deciduous – leaves
fall in autumn to avoid freezing
•May be prickly
•May be narrow
•May be wide
•‘Gutters’ help extra water run off
Plant Adaptations
Roots
•Tap root
(like a
carrot –
dandelion –
pine tree)
•Fibrous
root (looks
like hair grass)
•Bulb (tulip)
Stems
•Vines
• Woody
with bark
• Nonwoody and
flexible
•Briars
Leaves
•Thick and
waxy evergreen
•Color
•Thin –
deciduous
– leaves
fall in
autumn to
avoid
freezing
•Size
•Tendrils
•Prickly
•Shallow
•Gutters
•Deep
Flowers
•Scent
•Shape
Fruit/Seeds
•Fruit –
colorful,
fragrant, and
protect the
seed
•Seeds –
disperse by
wind, water,
or animals
Germinate
with warmth
and moisture
Store energy
for
germinating
plant
Working with a partner, design a wind dispersed seed
structure that will carry a single seed (dried lima
bean) the farthest distance possible.
You will be given one sheet of white 8 1/2 by 11
paper, a pair of scissors, plastic tape, and a one seed.
You may not use more than one sheet of paper but
you do not have to use all the paper. You may cut,
fold, tear, and/or tape your paper in any manner you
choose provided your seed is fixed to the seed
structure and does not fall out.
After you have completed the design and assembly
of your seed structure, it will be dropped in front of
a fan, and the distance it travels will be recorded.
Each seed/seed structure will be dropped 3 times,
and the average distance traveled for the three
trials will be calculated.