Which trace element is required for the proper functioning of the enzyme glutathione peroxidase, which protects cells from oxidative damage?

A Selenium ✓
B Manganese
C Molybdenum
D Chromium

Explanation

Selenium is a crucial component of the enzyme glutathione peroxidase, which helps protect cells from oxidative damage by reducing hydrogen peroxide.

Source

Biochemistry textbooks
Minerals and Trace Elements Biochemistry Antioxidant Defense Hard MEDICAL Confidence: high