1. Plant Structure and Function

2. Is It a Stem, Leaf, Root, Flower, Fruit or Seed?
Fruit/Vegetable
Part of Plant
Broccoli
Cabbage
Carrot
Celery Stalk
Corn Kernel
Garlic
Onion
Potato
Tomato
Zucchini

3. Plant Body Shoot system = leaves + stem Root system
Meristem = cells that divide for life of plant, can give rise to all plant structures

4. Three Types of Plant Tissues
Vascular Tissue
Transport
Support
Ground Tissue
Synthesis of Sugars
Storage
Dermal Tissue
Protection

5. 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

6. Stoma = opening in the leaf for gas exchange, water evaporation
Plant Body
Leaf = blade + petiole
Functions
Exposes surface to sunlight Major site of photosynthesis Conserves water Provides for gas exchange
Blade
Petiole
Stoma = opening in the leaf for gas exchange, water evaporation

7. Transports water and sugar to stem and roots
Conserves water
Photosynthesis
Transports water and sugar to stem and roots
Structures of the Leaf

8. Phloem transports sugar
Plant Body
Stem: series of nodes and internodes
Functions
Holds leaves up to light
Transports substances through vascular tissue
Phloem transports sugar
Xylem conducts water
and minerals

9. Lateral Meristem Causes the Stem to Grow in Width

10. Wood and Bark are Products of Lateral Meristem

11. Plant Body Root Functions Anchors plant in soil
Takes up water and minerals from soil

12. Applying Your Knowledge
Apical Meristem
Vascular Tissue
Stem
Leaf
Lateral Meristem
Where is the primary site of photosynthesis in a plant?
Which one is responsible for an increase in plant height?
Which one transports materials throughout the plant?

13. Flowering Plant Reproduction
Pollen grains
Ovule
Flower
Meiosis
Mitosis
Flowers are modified leaves, specialized for reproduction.
Flower parts undergo meiosis to produce haploid products
pollen grain
ovule (contains egg cell)

14. A Complete Flower Has Both Male and Female Parts
Produces pollen
Stamen
Anther
Attracts pollinator
Filament
Pistil
Stigma
Petal
Style
Sepal
Ovary
Encloses and Protects Bud
Female part
Produces egg

15. Pollination and Fertilization in a Flower
Mature Pollen Grain
Sperm Cells
Tube Cell Nucleus
1. pollen grains land on stigma
2. pollen tubes grow down stigma to ovary
3B: Fusion of 2nd sperm + two polar nuclei
Stigma
3. double fertilization
Style
Sperm
3A: Fusion of sperm + egg
Pollination and Fertilization in a Flower
Ovule
Polar nuclei
Ovary
Egg

16. Development of Fruit and Seeds From Flower Parts
Provides nutrition
Endosperm
Triploid
Endosperm
Cell
Fresh Fruit
Ovary
Seed Coat
Integument
Diploid Zygote
Embryo (new plant)
Seed = embryo + stored food + seed coat
Fruit = ovary wall, mechanism for seed dispersal

17. Applying Your Knowledge
Seed
Fruit
Pistil
Anther
Pollen
Which one develops from the ovary wall?
Which one produces pollen?
Which one develops from a fertilized ovule?
What is the name of the female part of the flower?