BIOL 1201 : Bio 1201 Exam 1
Document Summary
Moles and molar concentrations: 1 mole = the mass of a substance equal to its gram molecular weight, 1 molar solution = a solution containing 1 mole of a substance per. 1 liter of solution (in order to have 1 molar solution of insulin, you need to dissolve 5. 727 kg/liter) Ionic bonds: weak bond, transfers an electron. Covalent bonds: strong bond, sharing of electrons. Polar bonds: unequal sharing of electrons, partial + and partial regions, no net charge. Hydrogen bonds: weak (non-covalent) bonds, b/w partial positive and partial negative charges. Water: 70 to 90% of weight of most life forms, sets the lower temperature limit for life, sets the upper temperature limit? (probably not, water is biological molecule. The unusual properties of water important role in structures and properties of biological molecules: result from hydrogen bonding, water behaves as much larger molecule.
