AnswersPA Human Anatomy Physiology A 2026-2027 SMITH ICCatalystsQuestion 4
4
QuizMultiple Choice

Catalysts

Question 4 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC

What is a substrate?

Answer
A
a molecule that acts as a catalyst
B
a place on the enzyme where the reaction occurs
C
a place on the product where the enzyme fits
D
a reactant that is catalyzed by an enzyme
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