1. 12.4 Roots Pages 558-563

2. Roots

3. Ta Phrohm temple in Cambodia

4. Function Anchor plant Absorb water and nutrients Store water and carbohydrates

5. Types of Roots TaprootFibrous roots

6. Root hairs Microscopic hair-like outgrowth from an epidermal cell. Increase surface area for absorption

7. Root cap Thick layer of cells produces a slippery substance allowing root to penetrate soil Meristem

8. Cortex Parenchyma Stores carbohydrate Water passes through cortex

9. Endodermis Wrapped with a wax-like substance. Form a barrier called the Casparian strip

10. Vascular cylinder EudicotMonocot Gymnosperms

11. Root Specializations 80% of plants have mutualistic relationships with mycorrhizal fungi Also, nitrogen-fixing bacteria such as Rhizobia are found in the root nodules of legumes

12. Roots continued… Tuberous roots: lateral roots used for storage For example: yam Adventitious root: prop root

13. Uses of roots Food Medicine Erosion control