Matching

-If an enzyme-catalyzed reaction has a low rate at low pH and high rate at higher pH,this implies that a group on either the enzyme or the substrate must be ______ for an efficient reaction.
A) high
B) deprotonated
C) protonated
D) catalytic mechanism
E) covalent
F) rate-determining step
G) leaving group
H) formation of ES
I) amino acid
J) low
K) coenzymes
L) concerted acid-base
M) orientation
N) oxidation

Question

Matching

-If an enzyme-catalyzed reaction has a low rate at low pH and high rate at higher pH,this implies that a group on either the enzyme or the substrate must be ______ for an efficient reaction.
A) high
B) deprotonated
C) protonated
D) catalytic mechanism
E) covalent
F) rate-determining step
G) leaving group
H) formation of ES
I) amino acid 
J) low
K) coenzymes 
L) concerted acid-base
M) orientation
N) oxidation

Quizplus · Accepted Answer

A low rate at low pH indicates that there are not enough deprotonated groups available (such as amino acid side chains) to facilitate the reaction. The higher rate at higher pH suggests that with the addition of more protons, these groups are now able to deprotonate and participate in the reaction, leading to a more efficient reaction.

Matching -If an Enzyme-Catalyzed Reaction Has a Low Rate at Low