Which of the following is the optimum temperature for all enzymes to work in body?
Correct answer: D. 370C
- A. 0oC
- B. 15oC
- C. 25°C
- D. 370C
Explanation
This optimal temperature is usually around human body temperature (37.5oC) for the enzymes in human cells. Above this temperature the enzyme structure begins to break down (denature) since at higher temperatures intra- and intermolecular bonds are broken as the enzyme molecules gain even more kinetic energy.
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Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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