NUTR 1010 Study Guide - Final Guide: Heme, Broccoli, Ferritin
17 Jan 2015
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-compounds that protect our cells from damage caused by oxidation. A chemical reaction: an atom loses an electron. Free radicals: atoms with unpaired electrons remain unpaired, unstable. -steals an electron from stable compounds to stabilize itself, generates more free radicals. -damage ldl cholesterol, cell proteins, genetic material (dna), which. -disrupts transport of substances into and out of cells; Antioxidant vitamins(c,e) donate their electrons to free radicals to stabilize them. 2). certain minerals works in antioxidant enzyme systems, convert free radicals to less damaging substances. Enhance immune system: destroy and remove precancerous cells. Prevent oxidative damage to cells" dna: scavenge free radicals, stop formation and subsequent chain reaction Prevent some of the oxidative damage caused by eyes during aging, eg:macular degeneration. *antioxidant systems decrease the adverse effects of free radicals by: Systems can be helped by lifestyle (diet and exercise) good news. But!, if systems fail, free radical damage can be significant not so good news.
