Optimal temperature of enzymes present in human body is_____________?
Correct answer: B. 37?C
- A. 27?C
- B. 37?C
- C. 47?C
- D. 30?C
Explanation
Most human enzymes have an optimum temperature close to normal body temperature, about 37 °C, where enzyme-substrate collisions and molecular stability are balanced. Above this temperature, many enzymes lose their three-dimensional shape and become denatured. Students may choose 47 °C because a higher temperature can increase reaction rate briefly, but it soon damages enzyme structure.
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