what is the definition of an oxidant
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oxidant The substance that is reduced and that, therefore, oxidizes the other component of an oxidation-reduction system. /ox·i·dant/ (ok´sĭ-dant) the electron acceptor in an oxidation-reduction (redox) reaction.
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antioxidant A chemical compound or substance that inhibits oxidation. Certain vitamins, such as vitamin E, are antioxidants and may protect body cells from damage caused by the oxidative effects of free radicals.
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Antioxidants Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage. Antioxidants are found in many foods, including fruits and vegetables. They are also available as dietary supplements. Vegetables and fruits are rich sources of antioxidants.
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antioxidant A free radical is any atom or molecule that has 1 or more unpaired electrons and is therefore highly reactive, seeking to acquire electrons from other substances. Free radicals are normally scavenged from tissues by the antioxidant enzymes superoxide dismutase and glutathione peroxidase.
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- Noun[edit] antioxidant ‎(plural antioxidants) 1  Any substance that acts to slow or prevent the oxidation of another chemical.  In nutrition, one of a group of vitamins that act against the effects of free radicals.
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Oxidant Oxidant. Definition. noun, plural: oxidants. (1) Any substance that has the ability to oxidize other substance. (2) A molecule or atom capable of accepting electrons during a redox reaction. Supplement. An oxidant is a substance that accepts or receives electron from another substance, hence, is consequently reduced.Since it accepts electrons it is also called an electron acceptor.2) A molecule or atom capable of accepting electrons during a redox reaction. Supplement. An oxidant is a substance that accepts or receives electron from another substance, hence, is consequently reduced. Since it accepts electrons it is also called an electron acceptor.
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antioxidant Definition of antioxidant. : a substance (such as beta-carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals.
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- Those in the early stages of their career can expect to make around $204K; however, individuals with five to 10 years of experience bring in $243K on average — a distinctly larger sum. For Cardiologists, 10 to 20 years of experience on the job amounts to an average salary of $287K.
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Oxidizing agent In chemistry, an oxidizing agent (oxidant, oxidizer) is a substance that has the ability to oxidize other substances (cause them to lose electrons). Common oxidizing agents are oxygen, hydrogen peroxide and the halogens.
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Oxidizing Agent: Definition & Examples Oxidizing agents are substances that gain electrons. They oxidize another substance in a chemical reaction, and in turn, the oxidizing agents are reduced due to a gain in electrons. A useful mnemonic device is: A substance gaining electrons undergoes reduction and is known as oxidizing agent.
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Oxidation Definition and Example in Chemistry By Anne Marie Helmenstine, Ph.D. Oxidation Definition: Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. An older meaning of oxidation was when oxygen was added to a compound. Example: Iron combines with oxygen to form iron oxide or rust.
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NCI Dictionary of Cancer Terms oxidative metabolism listen (OK-sih-DAY-tiv meh-TA-buh-lih-zum) A chemical process in which oxygen is used to make energy from carbohydrates (sugars). Also called aerobic metabolism, aerobic respiration, and cell respiration.
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- Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage. Antioxidants are found in many foods, including fruits and vegetables. They are also available as dietary supplements. Examples of antioxidants include.
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Redox The oxidation state of an atom is the fictitious charge that an atom would have if all bonds between atoms of different elements were 100% ionic. Thus, oxidation is best defined as an increase in oxidation state, and reduction as a decrease in oxidation state.
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antioxidants Recognition that many of the fundamentally damaging processes in disease are oxidative in nature and result from the action of oxygen FREE RADICALS has raised interest in the possibility of using antioxidants to minimize such damage.
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- Purpose. 1  The oxidase test is a biochemical reaction that assays for the presence of cytochrome oxidase, an enzyme sometimes called indophenol oxidase. 2  In the presence of an organism that contains the cytochrome oxidase enzyme, the reduced colorless reagent becomes an oxidized colored product.
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Reducing agent A reducing agent (also called a reductant or reducer) is an element or compound that loses (or donates) an electron to another chemical species in a redox chemical reaction. Since the reducing agent is losing electrons, it is said to have been oxidized. If any chemical is an electron donor (reducing agent), another must be an electron recipient (oxidizing agent). A reducing agent is oxidized because it loses electrons in the redox reaction.
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antioxidant inhibitor - a substance that retards or stops an activity. rust inhibitor - antioxidant that inhibits the formation of rust. beta-naphthol - an isomer of naphthol used in rubber as an antioxidant.
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radical rad·i·cal. 1. In chemistry, a group of elements or atoms usually passing intact from one compound to another, but usually incapable of prolonged existence in a free state (for example, methyl, CH 3); in chemical formulas, a radical is often distinguished by being enclosed in parentheses or brackets.ad·i·cal. 1. In chemistry, a group of elements or atoms usually passing intact from one compound to another, but usually incapable of prolonged existence in a free state (for example, methyl, CH 3); in chemical formulas, a radical is often distinguished by being enclosed in parentheses or brackets.
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Antioxidants: What You Need to Know As the name implies, antioxidants are substances that are capable of counteracting the damaging, but normal, effects of the physiological process of oxidation in animal tissue.Antioxidants are nutrients (vitamins and minerals) as well as enzymes (proteins in your body that assist in chemical reactions).They are believed to play a role in preventing the development of such chronic diseases as cancer, heart disease ,stroke, Alzheimer's disease, Rheumatoid arthritis, and cataracts.s the name implies, antioxidants are substances that are capable of counteracting the damaging, but normal, effects of the physiological process of oxidation in animal tissue.
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antioxidant noun. 1  An antioxidant keeps a substance from degrading or decaying by inhibiting the chemical reaction called oxidation, the reaction of substances to exposure to oxygen molecules. 2  The definition of an antioxidant is something that prevents or repairs damage that has been done to the body by oxidation. An example of an antioxidant is Vitamin A.
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- 1 Any substance that acts to slow or prevent the oxidation of another chemical. 2  In nutrition, one of a group of vitamins that act against the effects of free radicals. 3  Bulgarian: антиокислител m ‎(ántiokislítel) 4  Catalan: antioxidant m.  Chinese:
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Antioxidant An antioxidant is a molecule that inhibits the oxidation of other molecules. Oxidation is a chemical reaction involving the loss of electrons which can produce free radicals. In turn, these radicals can start chain reactions.When the chain reaction occurs in a cell, it can cause damage or death to the cell.n antioxidant is a molecule that inhibits the oxidation of other molecules. Oxidation is a chemical reaction involving the loss of electrons which can produce free radicals. In turn, these radicals can start chain reactions.
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Stumped By Oxidative Stress? Oxidative stress is the total burden placed on organisms by the constant production of free radicals in the normal course of metabolism plus whatever other pressures the environment brings to bear (natural and artificial radiation, toxins in air, food and water; and miscellaneous sources of oxidizing activity, such as tobacco smoke).
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Microbiolog - Chapter 6 - Metabolism: Fueling Cell Growth Oxidation-reduction reactions or redox. 1) Reactions in which one or more electrons is transferred from one substance to another. 1.1) Compounds that LOSE electrons are oxidized, Termed electron donor 1.2) Compounds that GAIN electrons are reduced, Termed electron carrier. 2) In reactions, electrons are removed.
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Antioxidants What are antioxidants? Antioxidants are special class of micronutrients (the term “micronutrient” means that only miniscule amounts are required to provide essential support for vital metabolic functions).