1 / 11

Protists and Fungi

Protists and Fungi. Chapter 2 Lessons 1 and 2. Protists. Protists Eukaryotes that cannot be classified into any other kingdom Live in moist environments Very diverse Unicellular or Multicellular Heterotrophs or Autotrophs. Characteristics of Animal Like Protists.

akeem-hicks
Télécharger la présentation

Protists and Fungi

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. Protists and Fungi Chapter 2 Lessons 1 and 2

  2. Protists • Protists • Eukaryotes that cannot be classified into any other kingdom • Live in moist environments • Very diverse • Unicellular or Multicellular • Heterotrophs or Autotrophs

  3. Characteristics of Animal Like Protists • Protozoans (animal-like protists) • Unicellular • Heterotrophs • Many have a contractile vacuole a structure that collects and expels excess water • Four groups of Protozoans • Sarcodinesmove and feed by forming pseudopods • Temporary bulges of the cell (“false foot”) • Cytoplasm moves towards one location and the rest of the organism follows • Flagellates-move by using whip-like tails • Ciliates-move using cilia • Hair-like projections that beat with a wave-like motion • Parasites-some are flagellates, some are ciliates, some form slime, all live off of one or more hosts

  4. Plant-Like Protists • Algae (Plant-Like Protists) are very diverse • Autotrophs • Unicellular or Multicellular • Contain many different types of pigments-chemicals that produce colors • Important food source in aquatic ecosystems

  5. There are Six Types of Plant-Like Protists • Brown Algae • Have many plant like structures • Red Algae • Most are multicelluar seaweed • Diatoms • Unicellular, glasslike cell walls • Green Algae • Dinoflagellates • Unicellular, armored algae • Euglenoids • Green, unicellular algae,eyespot

  6. Fungus-Like Protists • Like animals because they are heterotrophs • Like plants because they havecell walls • Reproduce using spores – tiny cell that is able to grow into a new organism Types of Fungus-like protists • Slime Molds • Water Molds and Downy Mildews

  7. Quick Check • What are plant-like protists called? • Why is sunlight important to plant-like protists? • What are some ways plant-like protists are different from each other? • Are fungus-like protists autotrophic or heterotrophic? • How do fungus-like protists reproduce?

  8. Characteristics of Fungi • Fungi • Heterotrophic eukaryotes with cell walls • Absorb food, and use spores to reproduce • Most fungi have hyphae • Branching tubes that make up the bodies of multicellular fungi • Absorb and transport food • Fungi are typically decomposers or parasites • Hyphae grow into the food then digestive chemicals ooze into the food

  9. Characteristics of Fungi • Fungi reproduce using spores • Fruiting bodies are the reproductive structures where spores are produced Reproduction can be • Asexual • Cells at the tip of the hyphae make spores • Budding-small yeast cell grows from the parent cell • Sexual • Hyphae of two fungi grow together and exchange genetic material

  10. Role of Fungi in Nature • Decomposers • Food Production • Yeast in bread • Mold in blue cheese • Antibiotics-used to kill bacteria • penicillin • Disease Causing • Plants-Corn smut, wheat rust, Dutch elm disease • Animals-Athletes foot, ringworm • Symbiosis • Fungi act as partners with plants to help the plants grow larger • Lichen-partnership between fungus and an algae

  11. Quick Check • What are characteristics that most fungi share? • What are hyphae? • How do fungi reproduce? • How are fungi used to treat disease?

More Related