Intro to Biology

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Author:
Anonymous
ID:
105177
Filename:
Intro to Biology
Updated:
2011-09-29 10:51:29
Tags:
biology
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Description:
BSCI 110a
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  1. covalent bonds
    • (50-110 kcal/mol)
    • Covalent bonds are formed when atoms share pairs of electrons
    • The energy required to cleave is great, making covalent bonds stable under most cellular conditions-C-C- bonds ~85 kcal/mol
    • Double bonds are formed when atoms share two pairs of electrons. -C=C- ~150 kcal/mol.
  2. noncovalent bonds
    • (<5 kcal/mol)
    • Ionic bonds (~3 kcal/mol): attraction between fully charged ions
    • Hydrogen bonds (2-5 kcal/mol): partial charge attraction
    • van der Waals interactions (~0.1 kcal/mol atom): transient charge
    • Hydrophobic interactions
  3. functional groups
    • methyl
    • hydroxyl
    • carboxyl
    • amino
    • phosphate
    • carbonyl
    • sulfhydryl
  4. protein classifications
    • enzymes
    • transport proteins
    • nutrient storage proteins
    • contractile or motility proteins
    • structural proteins
    • defense proteins
    • regulatory proteins
    • other

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