Which sequence correctly represents enzyme catalysis?
Correct answer: C. E + S → ES → EP → E + P
- A. E + P → EP → ES → E + S
- B. ES → E + S → E + P
- C. E + S → ES → EP → E + P
- D. EP → ES → E + S
Explanation
Enzyme and substrate first form the enzyme-substrate complex, which converts to an enzyme-product complex before releasing product and regenerating the free enzyme. Any sequence that starts from product runs the pathway backwards.
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About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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