Enzymatic reactions can become saturated as substrate concentration increases because

Question

Quizplus · Accepted Answer

Enzymatic reactions depend on the presence of enzymes, and there is a limited number of enzyme molecules present in the reaction mixture. When substrate concentration increases, more substrate molecules compete for a limited number of enzyme active sites, and eventually, all active sites are occupied by substrate molecules. At this point, the reaction is said to be saturated, and adding more substrate does not increase the rate of the reaction because there are no more enzyme molecules available to catalyze it.

Enzymatic Reactions Can Become Saturated as Substrate Concentration Increases Because