Question

Greg and Andrea are trying to find out how long it takes amylase, a digestive enzyme found in saliva, to break down a sample of starch. They put their sample in a beaker and covered it with their own saliva. After allowing it to sit on the lab table for 1 hour they measured the remaining surface area of the starch. What is the best way they could improve their experiment?

Answer 1

Take consistent amounts of their saliva samples with varying amounts of starch

Take consistent amounts of saliva samples and consistent amounts of starch

Take varying amounts of saliva samples and a consistent amount of starch

Take varying amounts of saliva samples and varying amounts of starch