1.6 proteins Flashcards
1
Q
draw an amino acid
A
page 19
2
Q
what sort of reaction forms dipeptides?
A
condensation reactions
3
Q
which bond forms between 2 amino acids?
A
peptide bond
4
Q
what are many amino acids joined together called?
A
polypeptides?
5
Q
describe the primary structure of proteins
A
sequence of amino acids in a polypeptide chain
2D
6
Q
describe the secondary structure of proteins
A
hydrogen bonds shape structure to either be a beta pleated sheet or alpha helix
3D
7
Q
describe the tertiary structure of proteins
A
hydrogen bonds, ionic bonds and disulphide bridges shape structure into a specific shape
3D
8
Q
describe the quaternary structure of proteins
A
contains more than one polypeptide chain and may contain prosthetic groups
3D
9
Q
test for proteins
A
add biuret reagent
purple if present
blue if not
