Question

At 100°C, which enzyme(s) is/are denatured?

a. Y only
b. X only
c. Both X and Y
d. Neither X nor Y

Answer 1

At 100°C, both enzymes X and Y would be denatured due to the high temperature disrupting their three-dimensional structures.

Step-by-step explanation:

When exposed to temperatures of 100°C, enzymes typically become denatured due to the disruption of their three-dimensional structure. This denaturation occurs because the thermal motion at high temperatures is sufficient to break the weak bonds that maintain the enzyme's structure, such as hydrogen bonds, ionic bonds, and disulfide bridges. Although the question does not provide specific information about the stability of enzymes X and Y at high temperatures, it is generally understood that for most enzymes, temperatures in the range of 25-40°C can be lethal and lead to denaturation. Therefore, it is safe to conclude that at 100°C, both enzymes X and Y would be denatured.