Amino Acids Flashcards
1
Q
glycine
A
the only amino acid with no chirality center
2
Q
zwitter ion
A
when the overall charge of the amino acid is zero, but some atoms are charged
the charges cancel each other out
3
Q
peptide bond
A
- links amino acids together
- amide functional group
- produces water when amino acids are connected = dehydration
4
Q
primary structure
A
the level that describes the list/sequence of amino acids
5
Q
secondary structure
A
describes local 3D shape of section of protein
contains alpha helix and beta sheets, held together by hydrogen bonding
6
Q
tertiary structure
A
overall shape of the protein
globular and fibrous shapes that hold the molecule together
7
Q
Quaternary structure
A
when multiple protein sub-units join together to create one functional unit
*example: hemoglobin functions as 4 identical units put together
