1 / 7

Chapter 22.1

Chapter 22.1. Life Cycle And History of Plants. Plant Life Cycle. Alternation of Generation Between haploid (N) and diploid (2N) phase Between Gametophyte (N) and Sporophyte (2N) plants One phase must be dominant The dominant phase changes with the different plant phyla.

kamana
Télécharger la présentation

Chapter 22.1

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. Chapter 22.1 Life Cycle And History of Plants

  2. Plant Life Cycle • Alternation of Generation • Between haploid (N) and diploid (2N) phase • Between Gametophyte (N) and Sporophyte (2N) plants • One phase must be dominant • The dominant phase changes with the different plant phyla

  3. Alternation of Generation Spores (N) Sporophyte plant (2N) Gametophyte plant (N) Sperm (N) Fertilization Egg (N)

  4. History of Plants • What is the evolutionary relationship between… • Bryophytes • Pterophytes • Gymnosperms • Angiosperms

  5. History of Plants Plants Aquatic Green Algae

  6. History of Plants Flowering Plants Cone-bearers Ferns Mosses Aquatic Green Algae Flowers & Fruit Seeds Vascular Tissue Dry Land SIMPLE COMPLEX

  7. 235,000 species (90%) 15,600 (5%) 11,000 (4%) 760 (1%) Flowering Plants Mosses Ferns Cone-bearing Modern Plants

More Related