Post on 11-Feb-2016
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The History of Classification
• In the 1700’s, Linnaeus separated all life into 2 Kingdoms: Plants and Animals.
• More kingdoms added as knowledge of the diversity of organisms increased.
• We currently have 6 Kingdoms. • Remember: Kingdoms are the broadest
taxon: KPCOFGS
Six Kingdoms in Taxonomyorganized according to type of cells, ability to make food, number of cells in body
1. Archaebacteria2. Eubacteria3. Protists4. Fungi5. Plants6. Animals
TerminologyGetting food
autotrophs – make own foodhetertrophs – get food from other sources
Type of cells
prokaryotic – no nucleus, membrane bound organelles, DNA is circular (plasmid), do contain ribosomes, smallereukaryotic – with a nucleus and organelles, DNA in chromosomes, larger
Terminology ContinuedBody type
unicellular – made of only one cellmulticellular – made of more than one cell; -have cells with special functions
Reproduction
sexual – need male and female parentsasexual – need only one parent
Archaebacteria-”ancient bacteria”-existed before dinosaurs-live in extreme environments
-hot springs-acidic environment-methane
-unicellular prokaryotes-some autotrophs, some heterotrophs
Eubacteria
Chemical makeup is different from that of archaebacteria.
-unicellular prokaryote-some autotrophs, some heterotrophs
Protists
-“odds and ends” kingdom because its organisms are pretty different from one another
-most unicellular, some multicellular-eukaryotes-some autotrophs, some heterotrophs
Fungi-mushrooms, mold, and mildew-most are multicellular, some (like yeast)
are unicellular-eukaryotes-all are heterotrophs-eat dead or decaying organisms
The Six Kingdoms Review
• Eubacteria- “true” bacteria (prokaryotic)• Archaebacteria – “ancient” bacteria
(prokaryotic”• Protista – WEIRD organisms!!!!
(eukaryotic)• Fungi – digest dead or decaying matter
(eukaryotic)• Plantae - stationary, photosynthetic
(eukaryotic)• Animalia – mobile heterotrophs
(eukaryotic)