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MCAT Chemical and Physical Foundations of Biological Systems Flashcards: 5e Enzyme Structure Catalysis

Study 5e Enzyme Structure Catalysis in MCAT Chemical and Physical Foundations of Biological Systems with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Which option best defines a prosthetic group in enzyme function?

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ANSWER

A tightly bound cofactor that remains associated with the enzyme. Prosthetic groups enhance enzyme function by remaining covalently or tightly bound during catalysis.

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MCAT Chemical and Physical Foundations of Biological Systems: Foundational Concepts

You are hereEnzyme Structure and Catalysis (5E)25 cards

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What this deck covers

This deck focuses on 5e Enzyme Structure Catalysis, giving you a quick way to review the definitions, rules, and examples that matter most for MCAT Chemical and Physical Foundations of Biological Systems.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
A soluble human hydrolase (E) catalyzes cleavage of an ester substrate (S) in buffered aqueous solution at 37°C. Initial rates were measured at varying [S][S] with and without 10 µM inhibitor X. The data are summarized: without X, Vmax⁡=120V_{\max}=120 nM·s−1^{-1} and Km=15K_m=15 µM; with X, Vmax⁡=118V_{\max}=118 nM·s−1^{-1} and apparent Km=60K_m=60 µM. Assume enzyme concentration is unchanged and product inhibition is negligible. Based on the vignette, which outcome is most consistent with the presence of a competitive inhibitor? Constants: none needed beyond values provided.
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