To understand the way that free radicals and antioxidants interact, you must first understand a bit about cells and molecules. This is a quick course in Physiology/Chemistry lesson: The human body is composed of many different types of cells.
Cells are composed of many different types of molecules. Molecules consist of one or more atoms of one or more elements joined by chemical bonds.
Atoms are made up of a nucleus, protons, electrons, and neutrons. The number positively charged particles (protons) in the nucleus of the atom is what determines how many negatively charged particles (electron) will surround the atom.
Electrons are take care of the chemical reactions and are the substance that bonds atoms together to form molecules. Electrons surround, or "orbit" an atom in one or more shells.
When two electrons are present, the innermost shell is full. When the firat shell is completely occupied, the electrons begin to fill the second shell and son..
The most significant factor in determining an atoms chemical behavior is the number of electrons in the outer shell.
An atom that has a full outer shell does not enter in chemical reactions. Atoms seek to reach a state of maximum stability by one of the following:
Loose or pick up electrons to either empty or fill the outer shell
Bonding with other atoms to share electrons to complete the outer shell
The most common way atoms complete their outer shell is by sharing electrons with other atoms. This bonding share strategy used by atoms satisfies the stipulations needed for maximum stability of the molecule.
Normally, bonds wont split in a way that leaves a molecule with an odd, unpaired electron. But when weak bonds split, free radicals are formed--free radicals are very unstable and react quickly with other compounds, trying to capture the needed electron to gain stability.
The most common way free radicals attack is by finding the closest molecule that is stable and from there they begin the process of stealing electrons. When the molecule that is attacked starts losing the electrons, it becomes a free radical as well. When this process begins, it creates a chain reaction in which the end result is a disruption of a living cell.
Some free radicals usually occur during metabolism;at times the body's immune systems cells will even purposefully create them to neutralize viruses and bacteria. However, environmental factors such as pollution, radiation, cigarette smoke and herbicides can also spawn free radicals.
Typically, the body is able to handle free radicals, but if antioxidants are unavailable, or if the free-radical production becomes excessive, damage can occur. Most importantly is that free radical damage accumulates with age.
Cells are composed of many different types of molecules. Molecules consist of one or more atoms of one or more elements joined by chemical bonds.
Atoms are made up of a nucleus, protons, electrons, and neutrons. The number positively charged particles (protons) in the nucleus of the atom is what determines how many negatively charged particles (electron) will surround the atom.
Electrons are take care of the chemical reactions and are the substance that bonds atoms together to form molecules. Electrons surround, or "orbit" an atom in one or more shells.
When two electrons are present, the innermost shell is full. When the firat shell is completely occupied, the electrons begin to fill the second shell and son..
The most significant factor in determining an atoms chemical behavior is the number of electrons in the outer shell.
An atom that has a full outer shell does not enter in chemical reactions. Atoms seek to reach a state of maximum stability by one of the following:
Loose or pick up electrons to either empty or fill the outer shell
Bonding with other atoms to share electrons to complete the outer shell
The most common way atoms complete their outer shell is by sharing electrons with other atoms. This bonding share strategy used by atoms satisfies the stipulations needed for maximum stability of the molecule.
Normally, bonds wont split in a way that leaves a molecule with an odd, unpaired electron. But when weak bonds split, free radicals are formed--free radicals are very unstable and react quickly with other compounds, trying to capture the needed electron to gain stability.
The most common way free radicals attack is by finding the closest molecule that is stable and from there they begin the process of stealing electrons. When the molecule that is attacked starts losing the electrons, it becomes a free radical as well. When this process begins, it creates a chain reaction in which the end result is a disruption of a living cell.
Some free radicals usually occur during metabolism;at times the body's immune systems cells will even purposefully create them to neutralize viruses and bacteria. However, environmental factors such as pollution, radiation, cigarette smoke and herbicides can also spawn free radicals.
Typically, the body is able to handle free radicals, but if antioxidants are unavailable, or if the free-radical production becomes excessive, damage can occur. Most importantly is that free radical damage accumulates with age.
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