How Would the Lack of a Cofactor for an Enzyme

Question

How would the lack of a cofactor for an enzyme affect that enzyme's function?
A) The enzyme's function would not be altered.
B) The enzyme would function more slowly.
C) The enzyme would function more quickly.
D) The enzyme would not be able to function.
E) The enzyme would cease to function after reaching a maximum rate.

Accepted Answer

Cofactors are necessary for the proper functioning of enzymes. They play a crucial role in the catalytic activity of enzymes by helping them to bind substrates, stabilize transition states, or transfer electrons. Without a cofactor, the enzyme would not be able to perform its function effectively, leading to a decrease or complete loss of enzyme activity. Therefore, the lack of a cofactor would most likely result in the enzyme not being able to function.