proteins

Question 1

what are proteins made from

Answer 1

polypeptides - formed when >2 amino acids join
monomers - amino acids
dipeptide - 2 amino acids
polypeptide - > 2 amino acids
made of one or more polypeptides

Question 2

amino acid structure

Answer 2

carboxyl group (COOH0 and amine group (NH2) attached to a carbon atom
R-group attached to carbon and are different in every amino acid

Question 3

dipeptide/polypeptide formation

Answer 3

peptide bonds - condensation
broken down by hydrolysis

Question 4

primary structure

Answer 4

sequence of amino acids in the polypeptide chain
different proteins have different sequences

Question 5

secondary structure

Answer 5

H bonds form between NH and CO groups
coils into helix or folds into beta pleated sheet

Question 6

tertiary structure

Answer 6

secondary structure coils or folds more
more bonds form between polypeptides

Question 7

bonds formed in tertiary structure

Answer 7

ionic bonds
disulfide bonds
hydrophobic/hydrophilic interactions
hydrogen bonds

Question 8

ionic bonds

Answer 8

attractions between - and + charged R groups

Question 9

disulphide bonds

Answer 9

only in cysteine
sulfur in one cysteine bonds to sulfur in other cysteine

Question 10

hydrophobic/hydrophilic interactions

Answer 10

hydrophobic R groups are close together, they tend to clump together