alleryStart learning →What forms when a substrate binds at an enzyme's active site during catalysis?
AA permanently denatured protein
BAn enzyme substrate complex
CA free radical chain carrier
DA second catalyst molecule
Answer & Solution
Correct answer: B. An enzyme substrate complex
1. The active site is the region of the enzyme shaped to bond a specific substrate.
2. Binding there produces an enzyme substrate complex.
3. That complex acts as a reaction intermediate on the catalysed pathway, not as a destroyed protein.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 12 "Kinetics", section 12.7 Catalysis_
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