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PLANTS

PLANTS. Nonvascular. Vascular. 2 Main Types of Plants. Moss. Seedless. Seed Making. Nonvascular-. plants that lack tube-like cells do not have “true” roots, stems, & leaves nutrients and gases travel via diffusion from cell to cell. Also known as the BRYOPHYTES. Vascular-.

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PLANTS

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  1. PLANTS Nonvascular Vascular 2 Main Types of Plants Moss Seedless Seed Making

  2. Nonvascular- plants that lack tube-like cells do not have “true” roots, stems, & leaves nutrients and gases travel via diffusion from cell to cell • Also known as the BRYOPHYTES Vascular- plants that have tube-like cells 1. xylem: carry water throughout the plant 2. phloem: carry nutrients throughout the plant have roots, stems, & leaves

  3. SEEDLESS VASCULAR PLANTS Phylum Pterophyta: Ferns The majority of Ferns are tropical Ferns have a vascular system They reproduce using Spores NOT SEEDS Spores under the fern leaf

  4. SEEDLESS VASCULAR PLANTS Sporophyte Pterophyta: Ferns Sporophyte (2N Diploid) generation is dominant Gametophyte generation is flat and heart shaped Contain antheridia (sperm) and archaegonia (eggs) They are monoecious Sperm needs water to swim to egg Gametophyte

  5. Phylum Gymnosperm Gametophytes within a Cone Phylum Angiosperm Gametophytes within flowers Adapted to living anywhere Sporophyte generation is dominant Sperm is now transferred within gametophyte with no need for water VASCULAR PLANTSwith seeds

  6. Gymnosperm Life Cycle • Trees form male and female cones • Male cones are thinner and smaller, usually found near top of tree • Female cones are fatter, usually found near bottom of tree and VERY sticky (to collect pollen)

  7. Gymnosperm Life Cycle Pollination: pollen lands on female gametophye Embryos develop in seed for protection and nourishment

  8. Gymnosperm Life Cycle • Cones mature after fertilization and pollination • Cones open and release seed • Seeds have a single wing Female cone closed Female cone opened

  9. Gymnosperms

  10. Questions for Tomorrows Quiz Directions:Answer the following questions in your notes. 1. What are the four characteristics of all plants? 2. Explain how mosses reproduce. Be sure to discuss The alternation of generations: Sporophyte and Gametophyte. 3) Define fertilization. Where are gametes made in moss? When is the plant diploid and when is it haploid? 4. What phylum do moss belong to?

  11. Questions for Tomorrows Quiz 5. What is the difference between chlorophyll and chloroplasts? What are accessory pigments? Explain chromotography? How do you determine the Rf of a pigment? 7. What is the difference between vascular and nonvascular plants? 8. What three groups of plants are vascular? 9. What phylum do ferns belong to? 10. Describe the lifecycle of ferns?

  12. Questions for Tomorrows Quiz 11. What is the dominant stage of a fern? What is the difference between pollination and fertilization? 13. Why do ferns and moss live in moist environments? 14. What is the purpose of a cone? What phylum of plants produce cones? Compare the female and male cones. What are all plants thought to have evolved from?

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