chpt. 17.3- domains and kingdoms
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Chapter 17.3- Domains and Kingdoms
Changing Number of Kingdoms
Kingdoms and Domains: Scientists debate how many kingdoms there are.
Bacteria Archaea Eukarya
Bacteria Archaea Protista Plantae Fungi Animalia
Monera Protista Plantae Fungi Animalia
The three-domain system
The six-kingdom system
The traditional five-kingdom system
BioEd Online
Domains There are 3 Domains Bacteria- cells contain cell walls with
Peptidoglycan (polymer that has 2 kings of sugar).
Archaea- cells contain cell walls without Peptidoglycan.
Eukarya- contains Eukaryotic cells. Contains the Kingdoms Protista, Fungi, Plantae and Animalia
Kingdom Bacteria
• Unicellular and prokaryotic
Kingdom Archaea
• Unicellular and Prokaryotic
• Live in some of the most extreme environments you can imagine
Kingdom ProtistaEukaryotic organisms that can be unicellular or multicellular. Has no organs.
Ex: plant like protist = algae
Ex: animal like protist = protozoans
Ex: fungus like protist = molds & mildews
Kingdom Fungi
Unicellular or Multicellular Eukaryotes that absorbs nutrients (heterotrophs).
Contains chitin
Ex: Mushrooms
Kingdom Plantae
Multicellular Eukaryotes that are autotrophs. Contains cellulose
Kingdom Animalia
Multicellular Eukaryotes that are heterotrophs. Has no cell wall.
DOMAIN
KINGDOM
CELL TYPE
CELL STRUCTURES
NUMBER OF CELLS
MODE OF NUTRITION
EXAMPLES
Bacteria
Eubacteria
Prokaryote
Cell walls with peptidoglycan
Unicellular
Autotroph or heterotroph
Streptococcus, Escherichia coli
Archaea
Archaebacteria
Prokaryote
Cell walls without peptidoglycan
Unicellular
Autotroph or heterotroph
Methanogens, halophiles
Protista
Eukaryote
Cell walls of cellulose in some; some have chloroplasts
Most unicellular; some colonial; some multicellular
Autotroph or heterotroph
Amoeba, Paramecium, slime molds, giant kelp
Fungi
Eukaryote
Cell walls of chitin
Most multicellular; some unicellular
Heterotroph
Mushrooms, yeasts
Plantae
Eukaryote
Cell walls of cellulose; chloroplasts
Multicellular
Autotroph
Mosses, ferns, flowering plants
Animalia
Eukaryote
No cell walls or chloroplasts
Multicellular
Heterotroph
Sponges, worms, insects, fishes, mammals
Eukarya
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