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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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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