The apparatus pictured as shown was set up to determine the conditions under which an enzyme acts. A narrow tube containing egg white was placed in each test tube and then the tube was filled with the liquid indicated.
The test tubes were then incubated for one day.
At the end of that period, it was discoverd that the egg white at the ends of the narrow tube in test tube 2 had disappeared.
The most reasonable conclusion that can be drawn from this investigation is that