enzymes Flashcards
dss
enzymes are
catalyst
they increase?
rates
without being?
used up
most enzymes are?
globular proteins
An enzyme changes?
activation energy of a reaction
What is activation energy
Energy needed to activate reactant to form products
At what moment does the enzyme ha a better affinity ,substrate,product,transition state?
at the transition state
What does change?
delta G
if the delta G is positif?
rx less favorable and not spontaneous
is delta G is negative?
rx favorable and spontaneous
the interactions btw enzyme and substrate?
- Stabilize the transition state
- lower activation energy
the delta G formule is
G=Gf-Gi
before rx, reactants need to collide?
in a precise orientation
Also, to have enough
kinetic energy to overcome repulsion btw e that come into contact as a bond forms
where does the substrate binds?
active site (binding site)
when that happen enzyme undergo
conformational change
conformational change,that change is called?
induced fit
The study of the rates of enzyme-catalyzed reactions is called
enzyme kinetics
