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10 Cards in this Set
- Front
- Back
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Oxidative stress |
Imbalance between the production of reactive compounds and the bodys ability to protect against their adverse effects |
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Reduction |
The process of gaining an electron during a chemical reaction |
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Oxidation |
The process of losing an electron during a chemical reaction |
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Free radical |
An unstable atom with an unpaired electron in its outermost shell |
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Antioxidant |
-A substance that has the ability to prevent or repair the damage caused by oxidation -Antioxidants neutralize free radicals so that they can no longer damage molecules like DNA |
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Chemical damage produced by free radicals have bee linked to |
Cancer, kidney disease, atherosclerosis, arthritis, diabetes, Alzheimer's disease, Parkinson's disease, cataracts, emphysema |
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Enzyme Systems |
-Selenium -Magnesium -Zinc -Iron -Copper |
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Antioxidant Chemicals |
-Vitamins E, C, A -Vitamin A precursor: carotenoids -Phytochemical |
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Vitamin E (Tocopherol) |
-The chemical name for some forms of vitamin E -The alpha form is the most potent Functions: -Development of central nervous system -Antioxidant function -Maintains nervous tissue & immune function -Development of muscle |
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Vitamin E as an antioxidant |
-Lipids in cell membranes are PUFAS -Vitamin E donates to electrons or hydrogens to free radicals -Vitamin E important in areas exposed to increased levels of oxygen: RBCs and lungs |
