1 / 19

Final Exam Review

Final Exam Review. : ). Chapter 9 Lesson 1. What is a plant?. What characteristics are common to all plants?. Cell Structure Eukaroytic cells (membrane-bound organelles) Cell wall Chloroplast Central vacuole Multicellular Producers.

Download Presentation

Final Exam Review

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.


Presentation Transcript

  1. Final Exam Review : )

  2. Chapter 9 Lesson 1 What is a plant?

  3. What characteristics are common to all plants? • Cell Structure • Eukaroytic cells (membrane-bound organelles) • Cell wall • Chloroplast • Central vacuole • Multicellular • Producers

  4. What adaptations have enabled plant species to survive Earth’s changing environments? • Protection • Cuticle • Slows down evaporation • Protection from insects • Support • Cell wall made of cellulose • Transporting Materials • Vascular tissue • Reproduction • Water-resistant seeds or spores • Movement of seeds or spores (water, wind, animals, etc.)

  5. Chapter 9 Lesson 2 Seedless Plants

  6. How are nonvascular and vascular seedless plants alike, and how are they different? • Nonvascular Seedless Plants • Bryophytes • Small • Lack vascular tissue • No flowers • Live in moist environments • Materials move through osmosis and diffusion

  7. Nonvascular Plants continued • Do not have roots, stems or leaves • Have rhizoids (unicellular or multicellular) • Photosynthetic tissue is one layer thick – lacks cuticle • Reproduction by spores, requires water • Examples: mosses, liverworts, hornworts

  8. Vascular Seedless Plants • 90% of plants • Contain vascular tissue • Smaller than ancestors • Have roots, stems, and leaves • Reproduce with spores • Exampls: ferns, club mosses, horsetails

  9. Chapter 9 Lesson 3 Seed Plants

  10. What characteristics are common to seed plants? • Seed: tiny plant embryo and nutrition for developing plant • 300,000 species of seed plants • Two groups • Gymnosperms – cone-bearing plants • Angiosperms – flowering plants

  11. Vascular Tissue • Two types: xylem and phloem • Xylem • Carries water and dissolved nutrients from the roots to the stems and leaves • Supports plant • Phloem • Carries dissolved sugars throughout a plant

  12. Roots • Anchor • Help plant stay upright • Absorb water and minerals • Some plants store food in roots (carrots, radishes, maple trees)

  13. Stems • Connects roots to leaves • Can be above ground or under ground • Supports branches and leaves • Xylem • Phloem • Classified as herbaceous (soft and green) or woody (stiff, not green)

  14. Leaves • Major site of photosynthesis • Made up of layers of cells • Cuticle • Epidermis • Stomata (singular is stoma) • Open and close – controlled by guard cells • Allows carbon dioxide, oxygen, and water vapor to pass through

  15. Leaves continued • Angiosperm – flat and broad • Gymnosperm – needlelike or scalelike, thick cuticle

  16. How are gymnosperms and angiosperms alike, and how are they different? • Gymnosperms • Oldest plants • Grow all over, except in Antarctica • Seeds in cones • Conifers – spruce, pine tree, redwoods • Building materials, paper, medicines, ornamental plants

  17. Angiosperms • 260,000 species • Grow in a variety of habitats • Grains, vegetables, herbs, spices, fruits • Clothing, medicines, building materials, food • Flowers • Seeds are a part of fruit • Flowers may not be noticeable

  18. What adaptations of flowering plants enable them to survive in diverse environments? • Annuals • One growing season • Biennials • Two growing seasons • Perennials • More than two growing seasons

  19. Adaptations continued • Monocots • one seed leaf – cotyledon • Vascular tissue is scattered • Flowers in multiples of 3 • Narrow leaves with parallel veins • Dicots • Two cotyledons (seed leaves) • Vascular tissue in rings • Flowers in multiples of 4 or 5 • Leaves veins are branched

More Related