Below the optimum, raising the temperature of an enzyme controlled reaction from 15 to 25 degrees Celsius will roughly
Correct answer: D. double the rate
- A. halve the rate
- B. stop the reaction
- C. have no effect on the rate
- D. double the rate
Explanation
Each 10 degree rise roughly doubles the rate because molecules collide more often and with more energy, until heat damage overtakes this gain near the optimum. Above the optimum the curve falls steeply as the enzyme denatures.
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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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