Practice question · Multiple choice
Denaturation destroys a protein's biological function while leaving its primary covalent backbone intact. What explains this loss of activity?
Hints
- Which specific structural levels are lost when a protein is denatured?
- Does a protein's catalytic activity rely on its sequence alone or on its spatial architecture?
Show the answer
B. Secondary and tertiary folding establish the catalytic geometry
Why
Hydrolysis breaks primary bonds, whereas denaturation disrupts higher-order folding. Biological activity depends on precise three-dimensional conformations; once these collapse, catalytic sites lose the specific geometries needed to bind substrates.
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