Life - i. Eukaryotic ii. Mostly single celled-Fungi Ex)...

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8.28.2 What is Biology? *Biology - study of life *Cell wall - Plants- cellulose Fungi- chitin Bacteria- murein *Cell membranes - fatty acids - Ether links (Archaebacteria) C-O-C - Ester links (Eubacteria) C-C-O-C O A. Life 1. Three Domains (Figure 1.10) a. Archaea - Archaebacteria Ex) Methanogens (produce Methane), Hyperthermophils (love heat), and Extreme Halphils (love salt) i. Ether links ii. No Murein (in cell wall) iii. Unicellular (primitive) iv. Prokaryotic (no nucleus) no membrane bound organelles b. Bacteria - Eubacteria Ex) Escherichia Coli (E. coli), Streptococci (Strap throat) i. Ester links ii. Murein (in cell walls) iii. Unicellular (Primitive) iv. Prokaryotic (no nucleus) no membrane bound organelles c. Eukarya - Protista Ex) [Simple plants(algae), animals(protozoa), and fungi(watermold)]
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Unformatted text preview: i. Eukaryotic ii. Mostly single celled-Fungi Ex) mushrooms, mold, yeast i. Eukaryotic *Heterotroph- cannot make ii. Mostly multi-cellular own food (organic molecule iii. Absorptive heterotrophs from inorganic) (secrete enzymes to absorb food)-Plantae Ex) Gymnosperm (pine), Angiosperm (flowering plants), Bryophyte (moss) *Autotroph- can make i. Eukaryotic own food ( organic ii. Multi-cellular molecule from inorganic) iii. Photosynthetic autotrophs -Animalia i. Eukaryotic ii. Multi-cellular iii. Ingestive heterotrophs Viruses 1. Not alive because not composed of cells (unicellular) a. Cell Theory- all living things are composed of cells b. Not organism. Viruses are infectious agents....
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This note was uploaded on 04/07/2008 for the course BS 131 taught by Professor Smith during the Spring '08 term at University of the Sciences in Philadelphia.

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Life - i. Eukaryotic ii. Mostly single celled-Fungi Ex)...

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