When the substrate is present in excess, doubling the concentration of enzyme will
Correct answer: A. approximately double the rate of the reaction
- A. approximately double the rate of the reaction
- B. halve the rate of the reaction
- C. leave the rate unchanged
- D. denature the substrate
Explanation
With abundant substrate every added enzyme molecule finds work at once, so rate is directly proportional to enzyme concentration. The rate only becomes independent of enzyme amount when substrate runs short and active sites compete for it.
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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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