LONG EXAM 3 Flashcards
what are enzymes
they are biological catalysts
made up of proteins
target specific molecules
what are the six classifications of enzymes? differentiate each
oxidireductase
transferase
hydrolase
lyase
isomerase
ligase
what is an oxidoreductase enzyme?
enzyme that catalyzes redox reactions
what is a transferase enzyme?
enzyme that catalyzes the transfer of functional groups
what is an hydrolase
catalyze hydrolytic cleavages. splits water molecules
adds H+ and OH- to the substrate
what is a lyase?
catalyze the cleavage of bonds without hydrolysis or redox reactions
what is an isomerase?
catalyze isomerization reactions
what are ligases?
catalyze reactions involving the formation of bonds between two substrate molecules couples to the cleavage of the pyrophosphate bond in ATO or another high energy molecule
are all enzymes proteins?
no
what is a protease?
a protease is an enzyme that catalyzes the break down of proteins by means of cleaving bonds between amino acid residues
what is a chymotrypsin?
a serine protease
