* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download 18.3 Kingdoms and Domains Updates to Linnaeus` System
Survey
Document related concepts
Biochemical switches in the cell cycle wikipedia , lookup
Endomembrane system wikipedia , lookup
Cell encapsulation wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cellular differentiation wikipedia , lookup
Cell culture wikipedia , lookup
Programmed cell death wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cell growth wikipedia , lookup
Transcript
18.3 Kingdoms and Domains Updates to Linnaeus’ System a. Some organisms had to be reclassified as we learned more -Example: Sponges had to be reclassified from plants to animals when microscopes were used to see the type of cells they had. b. Changed from 2 to 6 kingdoms. -Linnaeus- 2 kingdoms (plants, animals) -Now- 6 kingdoms! Sponges Organisms Classified Using Five Characteristics: 1. 2. 3. 4. 5. Cell Type- Prokaryote or Eukaryote Cell Wall- Does it have one? Body type- Unicellular or multicellular Nutrition- Heterotroph or autotroph Genetics-Similiarities in DNA. Three Domains: 1.Bacteria-Unicellular prokaryotes that have a strong cell wall and unique genetic system. Same as the eubacteria kingdom. 2. Archaea-Unicellular prokaryotes that have chemically unique cell walls. They live in extreme environments. Same as the Archeabacteria kingdom. BRAIN POP! 3. Eukarya-Organisms made up of eukaryotic cells. (Plants, animals, fungi and protists). Characteristics of Eukaryotes Plants-Autotrophs (make their own food). -Cell Walls (made of hard cellulose) -Mostly multi-cellular Characteristics of Eukaryotes Animals-Heterotrophs (must consume food) -No cell wals -Multi-cellular Characteristics of Eukaryotes Fungi-Heterotrophs -Cell wall (made of hard chitin) -Mostly multi-cellular Characteristics of Eukaryotes Protista-The “left overs” kingdom -Autotrophs or heterotrophs -Cell wall or no cell wall -Multi-cellular or uni-cellular BRAIN POP II!