BGCSE Science Single Award 0568 Practice Questions - Botswana BGCSE Science Single Award (Syllabus 0568) Exam

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What happens to the structure and function of an enzyme when it is exposed to temperatures far above its optimum temperature?

Its active site changes shape permanently, making it denatured and inactive Its reaction rate increases infinitely due to higher kinetic energy It becomes a substrate for another enzyme without altering its shape It freezes into a stable crystal structure that can be reactivated by cooling

Correct Answer:

Its active site changes shape permanently, making it denatured and inactive

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