1. Plant Tissues and Organs

2. What is a plant? A plant is a multicellular eukaryote that -
has cellulose in the cell walls,
stores food in the form of starch,
has a cuticle- a waxy, waterproof coating on the stems and leaves. Cuticles help to prevent water loss

3. Plant Tissues Dermal- surrounds plant
Vascular- transports food and water
- Xylem- moves WATER UP
- Phloem- flows FOOD (SUGAR) DOWN
Ground- photosynthesis, storage, support
Meristematic- area where growth occurs

4. Roots Function: Most grow underground
take in water and nutrients from the soil
Anchor the plant in the soil
Sometimes act as storage (radishes, carrots, etc)
Most grow underground
Contains vascular tissue (xylem & phloem), ground tissue (cortex), dermal tissue and meristematic tissue (root tips)

5. Root Cross-Section

6. Stems Function: provides support for growth
transports water, food and minerals to and from roots and leaves
Contains all tissue types

7. Leaves Function: usually the site of photosynthesis
Increased surface area to allow maximum absorption of sunlight
Contains guard cells & stomata sites of gas exchange

9. Reproduction Mosses and ferns use spores
All other plants produce seeds- contain the embryo, food source, and a protective coat
Flowers are the reproductive structure in highly evolved plants
Most flowers contain both male and female reproductive parts (complete flower)