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Cards In This Set
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In this process, plants and other producers take in energy in the form of light and convert it into chemical energy.
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Photosynthesis
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In this series of metabolic pathways, the energy from the bonds of glucose is extracted and is converted into a form that all living things can use.
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Cellular Respiration
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This type of reaction strips an electron from an atom in a compound.
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Oxidation
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The addition of an electron to another compound is referred to as what type of reaction?
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Reduction
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Why are oxidation and reduction known as redox reactions?
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Because they occur together
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A chemical reaction that consists of the coupling of an oxidation reaction and a reduction reaction.
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Redox reactions
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This type of reaction results in a decrease in potential energy in the oxidized compound.
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Oxidation reaction (remove an electron -- decrease in PE)
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The shift of an electron from one compound to another removes energy from what compound? What compound has an increase in potential energy?
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The first compound (oxidized compound) goes through a removal in potential energy, and the second compound (reduced compound) has an increase in potential energy
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Why is the transfer of electrons between molecules important?
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Most of the energy stored in atoms and used to fuel cell functions is in the form of high energy electrons. This allows the cell to transfer and use energy in small increments rather than a single burst.
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This small class of compounds functions as "electron shuttles", they bind and carry high energy electrons between compounds in pathways.
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Electron carriers
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True or false - Electron carriers can easily be reduced and oxidized.
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True
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What is the oxidized form of NAD? What about the reduced form?
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Oxidized form is NAD+, reduced form is NADH
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A compound that reduces another is known as:
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Reducing agent
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A compound that oxidizes another is known as:
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Oxidizing agent
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What would happen if excess free energy was present in a cell?
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This would result in an increase of heat in a cell, which would result in excessive thermal motion. This could damage and then destroy the cell.
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