When an enzyme is heated to 70 °C its activity is permanently lost. This is because the enzyme has been
Adiluted.
Bdenatured.CORRECT
Csaturated.
Dactivated.
JUPEBBiologyEnzymes
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Why the answer is B, and why the others tempt you.
High temperature breaks the hydrogen bonds and other weak bonds holding the enzyme in its tertiary shape, so the active site is deformed and can no longer bind the substrate. Denaturation by heat is irreversible.
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