L-arginine
SmM
\
lOmM
20mM
>
ε
ι
0
60
120
180
Time in min.
FIG. 5. Action of L-arginine and L-alanine on the potential difference across the
isolated small intestine of the turtle Testudo hermanni Gmelin. Ordinate: potential
difference in millivolts; abscissa: time in minutes. After Baillien and Schoffeniels
(US).
L-arginine
20H
20mM
<
c
c
3
υ
υ
Ο
Time in min.
FIG. 6. Action of L-arginine and L-alanine on the potential difference across the
isolated small intestine of the turtle Testudo hermanni Gmelin. Ordinate: short-circuit
current; abscissa: time in minutes. After Baillien and Schoffeniels
(115).
165