ch 6.5 Flashcards
1
Q
activation energy
A
E(a). In a chemical reaction, the energy needed to break the bonds of the reactants. Free energy of activation
2
Q
Do enzymes lower or increase the E(a) barrier?
A
lower
3
Q
active site
A
unique to each enzyme. Binds one or more substrate(s). It then changes shape, binding the substrates more tightly
4
Q
substrate(s)
A
the reactants on which the enzyme acts
5
Q
induced fit
A
a more tightly bound substrate(s)
6
Q
how can an active site lower and E(a) barrier?
A
by orienting substrates correctly, straining their bonds, providing favorable microenvironments
7
Q
inhibitors
A
reduce enzyme function
8
Q
competitive inhibitors
A
binds to the active site
9
Q
noncompetitive inhibitors
A
binds to a different site on the enzyme
