amino acids and the peptide bond Flashcards
what kind of molecule is a protein
macromolecule
What does the shape of a protein determine
function
what determines shape of protein
Sequence, type and number of amino acids in protein
6 ways proteins are used in calls
-cell membrane
-hormones
-immunoproteins
-transport proteins
-structural proteins
-contractile proteins
3 groups in amino acids
amino/basic group
variable group (R)
carboxyl group
bonds in polypeptides
peptide bond
covalent bond
made using condensation reaction
what does the variable group of an amino acid do
determines amino acid function
define primary structure of a protein
a sequence of amino acids
general structure of an amino acid
where NH2 represents amino group
COOH represents carboxyl group
R group represents a side chain
how many amino acids are there in all organisms
20
what changes in amino acids
the R group
dipeptide
condensation of 2 amino acids
polypeptide
condensation of many amino acids
when are amino acids unsaturated
they have a double bond
in the hydrocarbon chain
and are able to accept more hydrogen