1. Plant Adaptations

2. What is the structure of an organism?
A structure is a part of an organism that performs a specific job

3. What is a function of a structure?
The function is the job a structure performs.

4. Structure and Function
The structure and function of plant
parts show evidence of adaptation.
If the adaptation helps the plant
survive, it can be passed on to
offspring
Examples Include:
Defenses against consumers
Ways to attract pollinators
Seed dispersal to ensure survival

5. An inherited trait that helps an organism survive
What is an adaptation?
An inherited trait that helps an organism survive

6. Heredity and Function We have looked at genetics
Now, we will look at how genetics and function can effect adaptations

7. Heredity and Function
What are some genetic traits or adaptations we may see in animals over several generations?
What are some genetic traits or adaptations we may see in plants over several generations?

8. Common Plant Parts
There are more than half a million different types of plants, and even though they look different, they all have some common parts.
Most plants have:
roots
stems
leaves
flowers
seeds

9. Common Plant Parts The plant parts help plants to survive by:
Helping them obtain food, carbon dioxide or water
Help them reproduce
Help them defend against
consumers

10. Roots Root functions Act as anchors to keep the plant in the ground
Take in water an minerals from the soil
Some roots store food

11. Roots Root adaptations Roots must adapt to many different environments
Spread out and create a shallow root system
Grow a deep tap root
Grow above ground to support the tree
Store food for later use

12. Roots
Some roots spread out along the ground in search or water in places where it rains often

13. Roots
Some roots grow deep into the ground in search of water in places where it doesn’t rain often.
In other dry places, roots are shallow to catch any bit of rain that falls.

14. Roots
In some locations, roots begin on the stem to help support the plant or tree
Called buttress roots

15. Roots Some roots can store glucose for later use
These are typically roots we can eat

16. Stems or trunks Stem functions
Hold the plant upright and support the leaves
Carry water, minerals and food around the plant
Defend the plant against consumers

17. Stems or trunks adaptations
Stems and trunks must adapt to many different environments
Rigid and made of bark
Flexible and not made of bark
Have xylem to carry water and food around the plant
Defenses against consumers

18. Stems or trunks Hold the plant upright and support the leaves
Can be rigid or flexible

19. Stems or trunks
Carry water, minerals and food around the plant
xylem

20. Stems or trunks Defend the plant against consumers Stinging Hairs
Rose Prickles

21. Leaves Leaf functions To gather sunlight for photosynthesis
To absorb some water and carbon dioxide
To protect the plant
Leaves have many shapes and sizes, all depending on the environment and how much sunlight the plant needs.

22. leaves
adaptations
leaf size
float in water
catch prey
thorns
toxins

23. Leaves To gather sunlight for photosynthesis
Leaves in wet areas are usually large
Leaves in dry areas are usually small

24. Leaves
To float in water

25. Leaves
catch prey