BSSE General Science 1430 Practice Questions - Botswana Senior Secondary Education Certificate General Science (Syllabus 1430) Exam

Which statement correctly describes what happens to an enzyme when heated far beyond its optimum temperature?

Its activity increases exponentially because kinetic energy continues to rise. It breaks down into simple sugars and water molecules. Its active site changes shape permanently, preventing substrate binding (denaturation). The enzyme becomes a reactant and is consumed during the reaction.

Correct Answer:

Its active site changes shape permanently, preventing substrate binding (denaturation).

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