Take Home Quiz

1
Take Home Quiz Due Friday 5
pm Homework Due today 5 pm Reading Read
Chapter 7 Lab Skip Electrolytes and instead
prepare for Lipids lab
2
Catalysts Accelerate Reactions by Lowering Their
Activation Energy
Enzymes are proteins that catalyze biochemical
transformations
If ?G is negative, the reaction releases
energy If ?G is positive, the reaction requires
energy
3
Solutions Homogenous Mixtures of Solvent and
Solute
Homogenous Evenly distributed Solvent
Component of solution that is present in greatest
amount Solute What is dissolved in solvent
Solubility is determined by non-covalent
interactions
4
Ethanol is Quite Soluble in Water - Why?
45 EtOH (90 proof)
Like dissolves like
5
Vinegar and Oil Not so Much in Common
6
Water Soluble Vitamins and Fat Soluble Vitamins
Vitamin B5 (Pantothenic acid)
Vitamin A
Vitamin C
Vitamin E
Vitamin D
7
Water Dissolves Many Ionic Compounds
Examples of IV solutions MgSO4 Magnesium
sulfate CaCl2 Calcium chloride NaHCO3
Sodium hydrogen carbonate (sodium
bicarbonate) KCl Potassium chloride
8
Though Not All Ionic Compounds Are Water Soluble!
Some ionic compounds have very strong crystal
lattices
See Table 7.1 in text for list of soluble and
insoluble ionic compounds
9
Kidney Stones Crystals of Calcium Oxalate
and/or Calcium Phospate
10
Calcium Oxalate Stones from the Bladder of a Dog
calcium oxalate