Amino Acide, Amides And Chirality Flashcards
what type of amino acids are in the human body
alpha
what makes an amino acid alpha
the amine group is attached to the alpha carbon atom (2nd carbon after carboxyl group)
general formula of an amino acid
RCH(NH2)COOH
why doest the amine group react with acids to make salts
it is basic
when the amine group reacts with an acid what does it form
an ammonium salt
what is the carboxylic acid section of the amino acid able to react with and whbat do they form
alkalis to form salts
alcohols to form esters
how are carboxylic acids esterified
by heating with an alcohol in the presence of concentrated sulfuric acid
what is a zwitterion
within the structure of an amino acid the amine group accepts a proton from the carboxylic acid group to form an ion containing positive and negative charge
what is the isoelectric point
the ph at which the zwitterion is formed
what happens if an amino acid is added to a solution of greater PH than its isoelectric point
it behaves as an acid and looses a proton
what happens if an amino acid os added to a solution of lower PH than its isoelectric point
it acts as a base and gins a proton
what are amides
the product of reactions of acyl chlorides with ammonia and amines
what detrmines whether an amide is primary secondary or tertiary
thne number of carbons to the nitrogen
define sterioisomer
same structural formula but a different arangement of atoms in space
define chiral centre
a carbon atom that is attached to four different atoms or groups of atoms
