In the simulation you provided, with the given amounts of starch (3) and amylase (2) at a neutral pH (7) and a temperature of 35°C, the expectation is that amylase would begin to break down starch into maltose.
Considering the options:
a. nothing, starch remained the same - This is unlikely because amylase is expected to catalyze the breakdown of starch.
b. starch was broken down to glucose - This is incorrect as the breakdown of starch typically occurs in steps, mainly producing maltose first.
c. starch was broken down to maltose - This is the most likely observation, as amylase specifically breaks down starch into maltose before it further breaks down to glucose.
d. starch was broken down to glucose, then maltose - This option is also incorrect, as maltose is an intermediate product of starch breakdown.
Based on this analysis, the correct answer would be: c. starch was broken down to maltose.