1 / 40

Vascular Seeded Plants

Vascular Seeded Plants. What is a Seed Plant?. 1. Characteristics of seed plants: Have Vascular Tissue Use pollen and seeds to reproduce. What is a Seed Plant?.

toril
Télécharger la présentation

Vascular Seeded Plants

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. Vascular Seeded Plants

  2. What is a Seed Plant? • 1. Characteristics of seed plants: • Have Vascular Tissue • Use pollen and seeds to reproduce

  3. What is a Seed Plant? • 2. In seed plants, the plants that you see are in the sporophyte stage of the life cycle. The gametophyte stage is microscopic.

  4. What is a Seed Plant? • 3. How does vascular tissue help seed plants on land? • Standing upright • Transporting materials

  5. 4. Vascular Tissue A. Phloem B. Xylem Transports water • Transports food

  6. Seed Plant • 5. Seed plants use pollen to transport the sperm cells. • 6. Pollen: Tiny structures that contain the cells that will later become sperm cells.

  7. Transporting Pollen

  8. Seed Plant • 7. Seeds: Structure that contains a young plant inside a protective covering. • Protection from drying out • 8. All seeds… • Contains a partially developed plant • When conditions favorable, plant sprouts and grows

  9. Seed Plant Parts of a Seed

  10. Parts of a Seed

  11. Seed Dispersal • 10. Seeds can be dispersed by: • Other organisms • Water • Wind • Ejection

  12. Germination • 11. Germination: Occurs when an embryo begins to grow and pushes out of a seed. • 12. Once you see a plant’s leaves, it’s called a seedling.

  13. Roots • 13. Function of roots: • Anchors plant • Absorb water and minerals • Stores food • 14. Two types: • Tap • Fibrous Fibrous Taproot

  14. Stems • 17. Functions of stem: • Carries substances between the plants’ root and leaves • Provides support • Holds up leaves

  15. 18. Stem • Woody Stem • Hard • Rigid • Example: Maple tree • Herbaceous Stem • Contain no wood • Often soft • Example: Cone Flower

  16. Stems • 19. Annual Rings: • Pattern of circles inside a tree’s trunk • Made up a xylem • Represent a years growth

  17. Leaves • 22. Leaves capture the sun’s energy and carry out the food-making process of photosynthesis.

  18. Leaves • 24. The process by which water evaporates from a plant’s leaves is called transpiration. • 25. Plants close their stomata to keep the plant from losing water. TRUE!!!

  19. Stomata

  20. Gymnosperms The OLDEST PLants

  21. Gymnosperms • 26. A seed plant that produces naked seed. • Not covered in a fruit • Instead they have needle-like or scale-like leaves

  22. Gymnosperms • 28. All gymnosperms: • Need-like or scale-like leaves • Deep growing root systems

  23. Gymnosperms • 29. Four groups of gymnosperms that exist today: • 1. Cycads (palm tree with cones) • 2. Conifers (evergreens) • 3. Ginkgoes (Japanese and Chinese tree) • 4.Gnetophytes (deserts and tropical rainforests)

  24. Reproduction in Gymnosperms • 31. Most gymnosperms have reproductive structures called cones. • 32. Reproductive structures: • Male gametophyte: Pollen • Female gametophyte: Ovule

  25. Reproduction in Gymnosperms • 34. Life Cycle: • Pollination: Transfer of pollen from male to female • Fertilization: Sperm fertilizes egg • Seed Development: Female cones develop while seeds develop on tree. Male cones fall off after they shed theirs. • Seed Dispersal: Seeds move to a new place to grow

  26. Angiosperms • 35. All angiosperms: • Produce flowers • Produce seeds that are covered in fruit • 36. Flower: The reproductive structure an of angiosperm

  27. Parts of a Flower

  28. 39. Reproduction in Angiosperms • 1. Pollen falls on a flower’s stigma • 2. Sperm cell and egg cell join together in ovule • 3. Zygote develops and becomes the seed

  29. 42. Groups of Angiosperms • Monocots • Dicots • Based on: • Number of Petals • Veins in leaves Dicot Monocot

  30. MONOCOT vs DICOT • 43. “COT” is short for cotyledon (seed leaf) • 44. “MONO” means one • 45.”DI” means two

  31. Seasonal Changes • Phototropism: • 50. A plant’s response to seasonal changes in length of night and day is called photoperiodism. • 51. Plants differ in how they respond to the length of nights. This length is called criticallength. • TROPISM: A plants response towards or away from a stimulus.

  32. Tropism

  33. Types of Plants

  34. Dormancy • 53. Dormancy is a period when an organism’s growth or activity stops. • Helps survive freezing temperatures • Helps survive a lack of liquid water

  35. Life Spans of Angiosperms • 54. Classified on the length of their life cycles. • 55. Life Spans: • Annuals: Complete a life cycle within one growing year (Impatiens and cucumbers) • Biennials: Complete life cycle in 2 years (Celery and foxgloves) • Perennials: Live for more than 2 years (Maple trees and peonies)

More Related