Cell theory has 3 basic parts: or
1. All
organisms are
composed of
cells.
2. The cell is the
unit
of structure and
for all
3.
cells are created by
the division of
cells.

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature