Amylase is an enzyme that promotes the breakdown of starches during digestion. Which of the following describes the method by which amylase functions?
A. It catalyzes starch breakdown without being changed or depleted.
B. It changes its composition in order to break starch down itself.
C. It functions as a hormone that signals for starch breakdown to begin.
D. It inhibits chemical reactions by being changed or depleted by the starch.
Answer: A
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