Amino Acids

Question 1

what structures are amino acids the building blocks of

Answer 1

polypeptides and proteins

Question 2

what do all amino acids contain

Answer 2

a C bonded to: amino group, carboxyl group, hydrogen and a sidechain(R)

Question 3

what letters are given to the stereoisomers of amino acids

Answer 3

D and L

Question 4

how many different amino acids are there and give a few examples

Answer 4

21 different amino acids, eg leucine, glycine, aspartic acid

Question 5

what are the 4 different types of amino acid

Answer 5

acidic, non-polar(hydrophobic), polar(hydrophilic), basic

Question 6

what functional group is found in acidic amino acids

Answer 6

COOH

Question 7

what functional group is found in basic amino acids

Answer 7

NH3, NH2, NH

Question 8

what functional group is found in hydrophobic amino acids

Answer 8

CH3, hydrocarbon sidechain

Question 9

what functional group is found in polar amino acids

Answer 9

OH, SH, H, CONH2

Question 10

what is the name of the bond between 2 amino acids

Answer 10

peptide bond, CO-NH

Question 11

describe the structure of peptide bonds

Answer 11

planar, strong and rigid (fixed in place)