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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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PRODUCTS
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Substances that form from a rxn
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COUPLED RXNS
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When the enery released by a exergonic rxn is used to drive an endergonic rxn
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ΔG =
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Free energy of products - (minus)
Free energy of reactants |
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ENZYME
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a protein molecule that acts as a catalyst to speed up a rxn
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SUBSTRATE
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Reactants in an enzymatic rxn
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ENERGY OF ACTIVATION
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The energy taht has to be added to cause molecules to react
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ENZYMES LOWER THE ACTIVATION ENERGY BY...
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bringing substrates in contact with one another and/or participating in the rxn
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-ase
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enzyme
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KINETIC ENERGY
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The energy of motion
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POTENTIAL ENERGY
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Stored energy
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ENTROPY
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The amount of disorganization
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1st LAW OF THERMODYNAMICS
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Energy is not created or destroyed...
but it can be converted from one form to another |
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2nd LAW OF THERMODYNAMICS
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Energy converted from one form to another results in a loss of USABLE energy
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THERMODYNAMICS
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The study of energy conversions
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REACTANTS
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Participate in a reaction
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ENDERGONIC RXN
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Rxns in which ΔG is + (positive) products have more energy than reactants (ENERGY INPUT REQUIRED)
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like photosynthesis
non-spontaneous |
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EXERGONIC RXN
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Reactions where ΔG is - (negative)energy is released
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like cellular respiration
spontaneous |
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ENZYMES ARE...
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not used up in a reaction
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CELLULAR RESPIRATION
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produces energy in the form of Adenosine Triphosphate (ATP)
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the opposite of photosynthesis
exergonic |
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FACTORS THAT AFFECT ENZYME ACTION...
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temperature
pH salt concentration product concentration |
there are 4 of them
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