Some Energy Producing Processes Produce Reactive Oxygen Species (Free Radicals)

Multiple Choice

Some energy producing processes produce reactive oxygen species (free radicals) that can cause damage to cells. Which of the following is NOT a mechanism of free
Radical generation?

A) Absorption of radiant energy
B) Enzymatic metabolism of exogenous chemicals or drugs
C) During creation of ATP via glycolysis
D) Free electron donation from transition metals (e.g. copper, iron)
E) Reduction-oxidation reactions during normal metabolic processes