The right answer is C. begins to denature above 25°C
In biochemistry, denaturation is the process by which a biological macromolecule, nucleic acid or protein loses its normal three-dimensional conformation: the proteins lose their folding and unfold, the paired strands of the nucleic acid duplexes separate. This three-dimensional conformation is most often necessary so that the biological macromolecules can fulfill their function and thus the inactive denaturation in general these biological macromolecules.
Denaturation can be done by:
*Temperature: The increase in temperature causes thermal agitation of the atoms of the molecule. This causes a break in intermolecular interactions.
*Chemical agents: chaotropic agents, bases, acids, reducing agents, detergents, heavy metal ions.
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