Arkansas Esthetician Practice Exam

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What is Co-enzyme Q-10 known for in human cells?

Increasing density
Improving preservative effectiveness
Being a powerful antioxidant
Providing lubricity

The correct answer is: Being a powerful antioxidant

Co-enzyme Q-10 is a well-known powerful antioxidant in human cells that benefits the body by fighting against potentially harmful free radicals. Free radicals are unstable molecules that can cause damage to cells and DNA, potentially leading to diseases such as cancer. Therefore, Co-enzyme Q-10's main role is not to increase density, improve preservative effectiveness, or provide lubricity. While these may be benefits of certain substances, they are not the main function of Co-enzyme Q-10 in human cells.