1. PLANT STRUCTURE AND FUNCTION

3. Plant Organs Leaves Cones Flower Stem Root
Where photosynthesis occurs (contain chloroplasts)
Cones
Contains reproductive organs (in conifers)
Flower
Site where reproduction occurs
Stem
Transports nutrients and supports the plant
Root
take in nutrients and anchor plant

4. Types of Tissue
Meristem
Ground
Dermal
Vascular

5. Tissue Vascular Tissue Ground Tissue Dermal Tissue Transport Support
Synthesis of Sugars
Storage
Dermal Tissue
Protection

6. Meristem Tissue
Meristem tissue = cells that divide for life of plant, can give rise to all plant structures

7. Division of Meristem Cells Causes Plant Growth
Apical Meristem
tips of root and shoot
increase in height
Lateral Meristem
cylinders within plant body
increase in width

8. Problem!
IF THE CUTICLE BLOCKS WATER, WHAT ELSE IS PREVENTED FROM ENTERING/EXITING THE PLANT?
C O 2 !!

9. Solution? STOMATA! Guard Cells
Tiny pores in epidermis surrounded by two guard cells!
Guard Cells
Help regulate transpiration by opening and closing stomata
Open during the day! Why?
PS occurs during the day
Transpiration necessary for cooling

11. Stems Transports food, water, and nutrients
Supports the leaves and flowers

12. VASCULAR TISSUE
2 MAJOR TYPES:
XYLEM TISSUE
PHLOEM TISSUE

13. Parts of the Stem Xylem Water and minerals travel to other plant parts
Phloem
Manufactured food travels to other plant parts
Cambium
Separates xylem and phloem

14. xylem

15. Roots can be adapted for storage of nutrients:
Example: Carrot (Taproot)
Sweet Potato (Fibrous Root)

16. Plant Processes Photosynthesis Transpiration Reproduction
Mixes light, water, and carbon dioxide in the presence of chlorophyll to produce sugar and oxygen
Transpiration
Loss of water through the leaves or stems
Causes wilting when soil is dry
Reproduction
Seeds!

17. Animal
Water
Wind
                         
                         
Dispersal of Seeds
Gravity
Wind
Force

18. What do plants do? All plants are alike in one way.
They need three things in order to survive
Water
carbon dioxide
energy from sunlight
What do you suppose the plants use these things for?
Classify – to sort into groups based on similarities and differences

19. Plants and some protists conduct photosynthesis.
They turn it into sugar!
photosynthesis – a process by which plants change light energy from the sun and use it to make sugar
Plants and some protists conduct photosynthesis.

20. Differentiate between xylem and phloem?
Bell work 10/20
Differentiate between xylem and phloem?

21. Xylem and Phloem

22. Photosynthesis As a plant makes sugar, oxygen is released
When the plant uses the sugar, water and carbon dioxide are released.

23. Chloroplast Found in LEAVES!
Photosynthesis takes place inside chloroplasts
Contains saclike photosynthetic membranes called thylakoids
Thylakoids are arranged in stacks called grana

24. Chloroplast

25. Flower anatomy What are the three main parts of flowers? Petals
Stamens
Pistil

26. The Stamen: Male Reproductive Part of a Flower
Anther:
pollen grains (sperm cells) grow in the anther.
Filament:
holds the anther

27. The Pistil: Female Reproductive Parts of a Flower
Stigma
Style
Ovary (carpel)
Eggs(ovules)

28. Parts of a Flower