CATABOLICREACTION
CHEMICALREACTION
ANABOLICREACTION
FUNCTIONALGROUP
PHOSPHATEGROUP
HYDROXYLGROUP
CARBOXYLGROUP
METHYLGROUP
METABOLISM
AMINOGROUP
REACTANT
PRODUCT
BUFFER
ACID
BASE
K
P
T
O
I
P
H
O
S
P
H
A
T
E
G
R
O
U
P
J
M
I
X
A
Q
Q
N
E
I
I
W
W
E
E
I
I
T
U
T
I
B
O
Z
I
N
G
W
D
R
O
U
A
F
G
I
H
T
M
H
U
K
K
T
I
O
F
O
I
I
U
O
Z
I
U
H
A
R
J
A
T
C
U
D
O
R
P
L
K
I
I
D
W
E
U
A
T
B
U
F
F
E
R
I
A
I
Q
V
S
D
U
T
H
J
E
A
F
I
O
C
F
B
A
J
Y
A
R
I
U
U
Z
J
O
C
E
D
P
U
O
R
G
L
A
N
O
I
T
C
N
U
F
E
E
N
P
A
B
D
D
A
O
O
B
S
N
E
E
U
E
I
O
A
M
V
O
A
U
E
X
P
X
I
O
J
E
N
M
E
R
P
I
D
T
I
R
I
S
A
I
R
G
X
W
X
J
C
P
M
S
H
O
C
A
W
E
B
T
A
X
J
C
L
E
O
P
M
U
L
S
F
E
Y
L
I
I
A
A
C
X
L
G
A
T
A
O
P
O
V
A
M
U
I
S
D
L
M
B
L
A
U
S
A
R
E
P
C
A
U
E
C
M
E
E
G
M
R
A
J
S
E
O
A
G
B
H
O
E
I
T
O
M
R
I
A
E
T
S
O
I
J
R
I
W
B
O
E
T
T
E
M
O
R
G
T
A
A
Q
Z
H
X
E
C
R
T
L
X
A
N
W
R
A
E
X
G
S
A
E
Q
D
W
X
Y
I
B
W
B
Y
O
A
T
F
B
R
H
S
O
S
U
U
C
T
G
M
L
L
L
E
L
D
T
B
T
A
E
O
C
R
N
F
Y
G
O
N
U
O
G
V
G
G
C
C
A
S
A
A
C
B
D
A
I
U
A
D
U
I
B
Y
R
H
R
R
A
U
U
M
N
T
L
E
G
N
M
O
H
I
Y
A
Y
Y
O
O
B
E
O
J
A
Z
I
W
E
E
T
E
A
W
R
F
N
Z
O
F
U
M
R
E
S
U
O
I
R
W
K
M
M
B
F
C
O
A
B
U
U
P
P
T
Y
H
U
T
P
I
J
H
A
I
