Free radicals are dangerous because
A)they are found incorporated in any radioisotope, including those that can enter the body through the lungs as does radon
B)they can be taken into the body in the food eaten if that food has been grown in radioactive soil
C)they are substances that are missing some electrons and are extremely active chemically
D)All of these responses are correct.

Question

Quizplus · Accepted Answer

Free radicals are dangerous primarily because they are highly reactive molecules or atoms that are missing electrons. This makes them seek out other atoms or molecules from which they can take electrons, leading to cell damage. Choices A and B describe scenarios related to radioactivity, not the chemical reactivity of free radicals.

Free Radicals Are Dangerous Because