Biology of Animals lecture 2

Biology of Animals lecture 2 - Biology of Animals 9/1/11...

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Biology of Animals 9/1/11 Protons, neutrons, electrons- smallest part Spherical or dumbbell shape Bond 1 atom to another- covalent bond (typically) overlapping the 2 p orbitals 2 elements- inert (don’t react, gasses) and Carbon- needs to share a total of 4 electrons Carbon- based life form= you Macromolecules- like the cars of a train Water- 2/3 of you is water Nucleus of the oxygen is so large that the electron tends to spend more time around the oxygen. Oxygen is partially negative. Hydrogen is partially positive charge Polar bond Life is a function of organic molecules (table will be on test) Tape= link between monomer De (remove) hydration- removing water Hydro(lysis)- break Functional groups o OH- Hydroxyl group (alcohol) ol- OH o COOH- Carboxyl group (acid) shed H+ ions into water it is an acid o NH2- Amino group (bases pick up the hydrogen atoms from the water) o Phosphate group (ate- oxygen, phos- phosphorus) o CHHH- Methyl group, nonpolar, example of a
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Biology of Animals lecture 2 - Biology of Animals 9/1/11...

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