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Proteins CHEM 1152
proteins
16
Organic Chemistry
Undergraduate 2
03/25/2013

Additional Organic Chemistry Flashcards

 


 

Cards

Term
Amino acids consist of...
Definition
a carboxylic acid group with an amino group on the alpha carbon. (different side R groups that determine characteristics
Term
Amino Acids are classified as non polar when the R groups are...
Definition
H, alkyl, or aromatic
Term
amino acids are classified as polar neutral when the R groups are...
Definition
alcohols, thiols or amides
Term
when are amino acids considered to be acidic?
Definition
when the R group is a carboxylic acid
Term
when are amino acids considered basic?
Definition
when the R group is an amine
Term
Zwitterion?
Definition

when an amino acid undergoes ionization and has a +-.

[image]

Term
melting point of amino acid?
Definition
very high
Term
Isoelectronic point (pI)
Definition

at the (pI) the + and - of the zwitterion have no net charge.

At pH values above(basic) the (pI), net charge is -

 

At pH values below(acidic) the (pI) the net charge is +

Term

Amino acids as acids

 

Definition

 

            Negative Ion, Higher pH

Term
amino acids as bases
Definition
positive Ion, low pH
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