Unit 5: The Evolutionary History of Diversity Extras  Study Guide

Chapter 28 Protists Review Notes Point
  1. The kingdom formerly known as Protista is crumbling. Protists are more diverse than any other eukaryote group.
     
     
     
     
  2. Much of protist diversity has its origins in serial endosymbiosis .
     
     
     
     
  3. Unicellular protists:
     
     
     
     
     
     
     
     
  4. Multicellular protists:
     
     
     
     
    • Golden algae ( Chrysophyta ) can be unicellular or colonial and contain yellow and brown carotenoids for photosynthesis.
       
       
       
       
    • Brown algae ( Phaeophyta ), are multicellular "seaweeds" that can grow to great heights.
       
       
       
       
    • Red algae and green algae are the closest relatives of land plants.
       
       
       
       
      • Red algae ( Rhodophyta ) are multicellular "seaweeds" that contain red pigments.
         
         
         
         
      • Green algae ( Chlorophyta ) contain chloroplasts that give them their green color.
       
       
       
       
    • An innovation among the multicellular algae is the alternation of generations.
     
     
     
     
    Review: