An enzyme required Mg to catalyze the substrate. The Mg2+ is best identified as:
Correct answer: B. Activator
- A. Prosthetic group
- B. Activator
- C. Coenzyme
- D. Inhibitor
Explanation
Some enzymes use metal ions as cofactors like Mg2+,Fe2+,Cu2+,Zn2+ etc. The detachable cofactor is known as an activator if it is an inorganic ion.
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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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