Enzymes Flashcards
(22 cards)
reactants in a chemical reaction requiring enzymes
Substrates
specific area in the enzyme that the substrate will bind to
Active site
enzyme changes shape slightly once the substrate is inside
Induced-fit binding
adds phosphates to molecules
Kinase
removes hydrogen
Dehydrogenase
adds water
Hydrolase
dehydration synthesis reactions
Synthase
removes water from carbonic acid
Carbonic anhydrase
substances bind away from the active site, changing the shape and thereby function of the enzyme
Allosteric Inhibition
these bind away from active site but in doing so alter the shape of the active site
Allosteric Modulators
Molecules that bind to enzymes and inhibit true substrate from binding
Inhibitors
FACTORS THAT AFFECT ENZYME ACTIVITY
pH
Temperature
Inhibitors
an inactive enzyme that requires cofactor/coenzyme
Apoenzyme
a complete and catalytically active enzyme because it has its cofactor/coenzym
Co-factors
inorganic components required for substrate binding at the active site
Small organic molecules to accept and transfer electrons from different enzymatic reactions
Co-enzymes
electron transfer
Oxidoreductase
catalyzes rearrangement
Isomerase
transfers functional group
Transferase
combines two molecules
Ligase
cleaves covalent bonds
Lyase
catalyzes hydrolysis; separates molecule into two pieces
Hydrolase