Plant structure and function powerpoint

plant structure and their functions for science class

1. Plant Structure and function

2. Parts of a Plant

3. Roots
The “mouth” of the plant
most important part of a plant
How water and mineral get into the plant
Anchor the plant in place
Store sugars and carbohydrates that plant uses
to carry out other functions

4. http://plantsinmotion.bio.indi
ana.edu/plantmotion/vegetati
ve/veg.html
Watch roots growth
http://plantsinmotion.bio.indi
ana.edu/plantmotion/vegetati
ve/veg.html
Watch roots growth

5. Stem
Takes over after root sends water and minerals
into the plant
Special cells called phloem and xylem that move
water and nutrients
Xylem moves water and minerals up to the leaves
After leaves do their job, the phloem moved the food
(sugar) down to feed the plant.

6. Stem
Stems also provide support for the plant allowing
the leaves to reach the sunlight that they need to
produce food
Where the leaves join the stem is called the node
The space in between the leaves
and stem is called the internode

7. http://plantsinmotion.bio.indi
ana.edu/plantmotion/vegetati
ve/veg.html
Watch a plant wilt

8. Leaves
The food factory
Come in many different shapes and sizes
Simple Leaves
Blade connected by a petiole to the stem
Ex: Maple or Oak Leaf
Complex Leaves
Made up of separate leaflets attached by a pertiole
to the stem
Ex: Ash or Locust

9. Leaves
Leaves are made to catch light and have openings
to allow water and air to come and go
Outer layer has waxy coating called a cuticle
which protects the leaves.
Veins carry water and nutrients within the leaf

10. Leaves
Where water and minerals are converted into food
for the plant
Done by photosynthesis
Process where carbon dixoide and water in the
presence of cholorphyll (green pigment) and
light energy are changed into glucose (sugar)
Sugar is the source of food used by most
plants

11. Photosynthesis Rap
http://www.youtube.com/watch?v=pE82qt
KSSH4

12. Flowers
Important in making seeds
Fertilization is the process to make seeds
Petals attract pollinators such as bees, butterflies,
and bats.

13. Flowers

14. Why do Plants Adapt?
Protection
Reproduction
Climate and Location

15. Protection
Thorns

16. Protection
Spikes

17. Protection
Poisonous Leaves

18. Reproduction
Flowers are colorful to attract insects and birds to
their plants to get seeds.
They then carry the seeds where they will grow
new plants

19. Reproduction
They will also have brightly colored fruits that
attract animals.
Seeds are in the fruit that the animals eat causing
them to leave The seeds in animal
droppings.
This leads to new plants.

20. Reproduction
Plants with pollen is easily attached to insects or
carried by the wind

21. Climate and Location
Plants will grow bigger leaves to gather more sunlight
in colder climates

22. Climate and Location
In colder winters, many plants will become dormant
(like hibernation but for plants)
Plants live shorter lives and die off by winter time

23. Climate and Location
In Dry climates
Spines to discourage animals from eating plants for water.
Waxy coating on stems and leaves help reduce water loss.
Long root systems spread out wide or go deep into the ground
to absorb water

24. Climate and Location
In Dry climates
Some plants, called succulents, store water in their stems or
leaves;
Some plants have no leaves or small seasonal leaves that only
grow after it rains. The lack of leaves helps reduce water loss
during photosynthesis. Leafless plants conduct photosynthesis
in their green stems.