1 / 13

12.4 Roots

12.4 Roots. Pages 558-563. Roots. Ta Phrohm temple in Cambodia. Function. Anchor plant Absorb water and nutrients Store water and carbohydrates. Types of Roots. Taproot Fibrous roots. Root hairs. Microscopic hair-like outgrowth from an epidermal cell.

tilly
Télécharger la présentation

12.4 Roots

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 Taproot Fibrous 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 • Eudicot Monocot • 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

More Related