Chapter 20 Problem Set Flashcards
which organic compounds contain only singly bonded carbons and hydrogens?
alkanes
what name is given to a compound containing a hydroxyl group
alcohol
what name is given to a compound containing a -NH2
amine
what type of isomerism is described as two compounds having the same formula but different connections
constitutional isomers
which type of isomerism is described as isomers containing identical bonds but differing in the orientation of those bonds in space
stereoisomers
an a-amino acid is one in which the amine group and the carboxylic group are attached to
the same carbon atom
which statement about chirality is not correct
chiral amino acids have three enantiomers
the human body can synthesize 12 of the 20 amino acids necessary for survival, but the other 8 must be obtained from food. these amino acids are called
essential amino acids
a peptide bond is the result of a condensation reaction between
an amino group on one amino acid and the carboxylic acid group on another
potential functions of proteins
signaling molecule, transport, enzyme catalyst, structural unit
the assembly and interaction of coils and sheets in a polypeptide to produce the overall three-dimensional shape are described by the term
tertiary structure
the a-helix and B-pleated sheet are examples of
secondary structure
Amino acid enantiomers
Enantiomers are superimposable mirror images
what type of bonds do amino acids units (1degree structure) link through
peptide bonds
what is the primary structure of a protein associated with?
ordering of subunits
