7. MG 02. Properties of Water Flashcards
What are some characteristics that make water unusual when compared to other hydrogen bonded molecules like H2S
Higher boiling point
Higher freezing point
4 bonds that are formed by condensation
Amide
Ester (with P)
Ether (R-COO-R)
Aldol condensation
what are glycosidic linkages
It is a type of condensation reaction ex 2 glucoses to form maltose
what are salt bridges
carboxylate and amine, but both charged
what are van der Waals interactions
sum of all the attractive and repulsive forces between molecules other than covalent bonds
It is a force between 2 instantaneously induced dipoles
what are amphipathic molecules
Molecules with both polar and non polar regions
what determines the format of micelles vs bilayer
If the hydrophobic chain is single vs double. If single, forms a micelle
what are liposomes
artificial structures created based on the lipid bilayer
what are surface films
special structure formed by phospholipid bilayer
(dipalmitoylphosphatidylcholine + special proteins) make up surfactant
what do surface films do?
lowers surface tension, makes breathing easy, prevents atelectasis and prevents lung filling with transudate
what is an acid
a substance that dissociates protons
formula for pH
-log[H+]
formula fro Ka
concentration of the products/reactants
formula for pKa
-logKa
what is a solution
A mixture of a liquid and a soluble solid
