What is the primary mechanism by which cells regulate the concentration of reactive oxygen species?

A Antioxidant enzymes ✓
B DNA repair mechanisms
C Cellular respiration
D Protein degradation pathways

Explanation

Antioxidant enzymes, such as superoxide dismutase and catalase, play a crucial role in regulating the concentration of reactive oxygen species in cells.

Source

Berg et al. (2019). Biochemistry. 9th ed. New York: W.H. Freeman and Company.
Fundamentals of Biochemistry Biochemistry Redox Biology Medium MEDICAL Confidence: high