Question

6. Below is a graph that shows enzyme activity and temperature.Why does the graph slope down sharply once the temperature increases to over 40 degrees?The structure of the enzymes changes.The reactants have too much energy to react.The speed of the enzymes changes.The reactants are used up so the reaction slows.

Answer 1

Enzyme graph

Enzymes are proteins that function properly in a very specific temperature range.

When a certain temperature is exceeded (this temperature depends on the particular enzyme), the bonds between its monomers, the amino acids, become unstable and can cause its denaturation, i.e it loses its primary structure, and with it its enzymatic function.

With this information, it can be deduced that the correct answer to this question is the first option: The structure of the enzymes changes.