Most enzymes work the best at the following temperature:
Correct answer: B. 40oC
- A. 30oC
- B. 40oC
- C. 50oC
- D. 20oC
Explanation
Enzymes generally have an optimal temperature at which they exhibit their highest activity. At this temperature (40°C in this case), enzymes work most efficiently because the rate of their catalytic reactions is at its peak. This is because higher temperatures usually provide the necessary kinetic energy for enzyme-substrate interactions to occur with greater frequency and effectiveness.
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About Factors Affecting Enzyme Action
Enzyme activity changes with temperature, pH, substrate concentration and enzyme concentration because these factors affect molecular collisions and the active site. Questions also examine optimum conditions, denaturation and inhibition, while distinguishing a fall in activity caused by unsuitable conditions from permanent enzyme damage.
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