BSC 160 1nd Edition Lecture 5 Outline of Last Lecture 1 Phylogeny 2 Taxonomy 3 Classifying prokaryotes Outline of Current Lecture 1 Prokaryotes 2 Specific Names 3 Types of molecular bonds Current Lecture Prokaryotes Bacteria Archaea Archaea more closely related to Eucarya Viruses are acellular Not classified Endosymbiosis Assigning specific names Binomial scientific nomenclature Gives each microbe 2 names Genus Capitalized species lowercase Both italicized or underlined Inspiration for names is extremely varied often imaginative These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Fundamental Concepts Matter Molecules Matter anything with mass takes up space Atom makes up all matter Non modified atoms are electrically neutral Atomic of protons Protons define elements Ion charged element Cation positively charged ion Anion negatively charged ion Isotopes changing neutrons Many are unstable Electron arrangement Key to chemical behavior of atom lies number arrangement of electrons in their orbitals Shape is everthing Octet rule Outermost shell with electrons has to be full have 8 to be stable Except Hydrogen which has 2 Molecules Group of atoms held by stable association chemical bonds Types of Bonds Covalent bonds Strongest When electrons are shared Nonpolar equal sharing of electrons Polar unequal sharing of electrons H2O Redox Ionic bonds When electrons are gained or lost
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