How will brief heating (to 95°C)affect macromolecular structures in aqueous solution?
A) DNA duplexes will unwind and separate.
B) Proteins will unfold (denature).
C) Starch will hydrolyze into monomeric sugars.
D) Proteins will hydrolyze into amino acids.
E) DNA duplexes will unwind and separate, and proteins will unfold (denature).

Question

Quizplus · Accepted Answer

Brief heating to 95°C can cause both DNA duplexes to unwind and separate, as well as proteins to denature and unfold. This is because the high temperature can disrupt the weak interactions (such as hydrogen bonds and hydrophobic interactions) that maintain the three-dimensional structure of these macromolecules, leading to their breakdown. This can have detrimental effects on the biological function of these molecules. However, neither starch hydrolysis nor protein hydrolysis are likely to occur at this temperature, as these are chemical reactions that require specific enzymes or harsher conditions.

How Will Brief Heating (To 95°C)affect Macromolecular Structures in Aqueous