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