In biology, selenium is a trace element that is essential for the proper functioning of various biological processes. It is a component of several important enzymes and proteins, notably selenoproteins, which play crucial roles in antioxidant defense, thyroid hormone metabolism, and immune function. Selenium is important for: 1. **Antioxidant Activity**: It helps to protect cells from oxidative damage by being a part of the enzyme glutathione peroxidase, which detoxifies harmful peroxides.
New to topics? Read the docs here!