Yamiche Is a Biochemist with a Company That Manufacturers Substances

Multiple Choice

Yamiche is a biochemist with a company that manufacturers substances that can be added to foods to improve their flavor. She's discovered a chemical that she called "Agent X" in beet juice. Agent X prevents human cell membranes from being damaged by highly unstable substances that are in the environment. Based on this information, Agent X is a(an) ____.

A) supplement
B) risk factor
C) free radical
D) antioxidant