html5-img
1 / 9

Unit 4 – Plant Anatomy & Physiology

Unit 4 – Plant Anatomy & Physiology. The 5 Kingdoms:. Characteristics of Plants. Eukaryotic cells Have cell walls that contain cellulose Cells have numerous organelles Lack mobility Undergo photosynthesis (autotrophic). Evolution of Plants Onto Land.

arva
Télécharger la présentation

Unit 4 – Plant Anatomy & Physiology

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. Unit 4 – Plant Anatomy & Physiology

  2. The 5 Kingdoms:

  3. Characteristics of Plants • Eukaryotic cells • Have cell walls that contain cellulose • Cells have numerous organelles • Lack mobility • Undergo photosynthesis (autotrophic)

  4. Evolution of Plants Onto Land To make the transition to land, plants had to adapt and undergo major modifications: • Supportive structure  stems & roots • Anchoring structure  roots • Transport system  vascular system • Means to Reduce of Water Loss  cuticle (leaf) • Means to Exchange Gases  stomata (leaf) • Reproductive Structures For Dry Conditions  spores, pollen, flowers, fruit, & seeds

  5. IMPORTANCE OF PLANTS Plants are the Base of Food Chain  Producers!! • Photosynthesis is the creation of food energy from sunlight, CO2, and water • This is the only source of energy for all living things! • Recall: Sunlight + CO2 + H2O  C6H12O6 + O2

  6. IMPORTANCE OF PLANTS (Con’t) • Plants Provide SHELTER • Animals use plants as protection from the elements and predators! • Plants Create the PHYSICAL ENVIRONMENT of the Ecosystem • Animals have evolved to use the habitat and conditions created by plant life to survive!

  7. IMPORTANCE OF PLANTS (Con’t) Importance of Plants to Humans: • Food & Food Processing • Energy (Fires) • Clothing • Construction • Medicine, etc.

  8. PLANTS & BIODIVERSITY • Plants support all the animal species living in an ecosystem • 1 plant species supports an average of 50 different animal species!! • 300 000 plant species support 15 million animal species • As many as ¼ of the world’s plant species are endangered! (Science)

  9. Human Activity & Plants • Deforestation • Agriculture • Segmentation of Habitat • Pollution • Invasive Species (40% of all extinctions) • Monocultures

More Related