× Enect of Selenium and Quiz 8 C I ⓘ eztomteducation comhm.tpx?-071 5371109016565-15080064691 62 QUESTION PROGRESs Concept Check Concept Check 1. An excess of free radicals in the body can cause damage to ce select select Promotion of tumor growth components, but some free radicals actually have beneficial roles in the body Which of the following is a berneficial role of free radicals in the body? 2 Vitamin E functions as an antioxidant by Repair of DNA Activation of antioxidant enzyme systems 3. Selenium protects cels from oxidative damage by