Enzyme Kinetics Flashcards
What are biological catalysts?
Enzymes
Except for some RNA or RNA/protein complexes (Ribozymes) most enzymes are what?
Proteins
The name of an enzyme usually ends with what?
-ase
What does the name of an enzyme describe?
Its function
What does sucrase do?
breaks down sugars
What do proteases do?
break down proteins
What do lipases do?
break down lipids
What does DNA polymerase do?
builds DNA
What do oxidases do?
catalyze oxidation reactions
Sometimes common names are used particularly for which enzymes
digestion
Most names describe the substrate and the what?
function (alcohol dehydrogenase)
What is a molecule that enzymes work on called?
substrate
What do we call the molecule that is produced by an enzymatic reaction?
Product
What is the part of the enzyme where the substrate binds and a reaction takes place?
Active-site
Enzymes are not what during the reaction
changed
What changes during a catalyzed reaction?
the activation energy
What do catalysts do to the rate of a specific reaction?
accelerate
What don’t catalysts do?
Alter the reaction (change thermodynamic) Get consumed (remain the same/regenerated)
Catalysts affect the rate of the forward and reverse reactions by what?
the same factor
Do catalysts affect the position of equilibrium?
No
What do catalysts lower for a reaction?
the activation energy required
What is the Arrhenius equation?
k=Ae^(-Ea/RT)
In the Arrhenius equation, what is A?
Frequency factor (frequency of collision)
What is activation energy?
The minimum energy required to start a reaction (to reach the transition state from the reactants)