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chemical that (1) increases the rate of a reaction, (2) is not itself changed at the end of the reaction, and )3) does not change the nature of the reaction or its final result.
The reactant molecules have specific shapes that allow them to fit into the active site.
Enzyme's Basic Rules
* Enzymes are specific
* Enzymes are required for reactions to happen
* Enzymes are proteins
* Enzymes can be turned on or off
What are the effects of Temperature on a reaction?
An increase in temperature will increase the rate and chance of a reaction.
The rate of product formation will increase as the substrate concentration increases until the point of saturation
When the relationship between substrate concentration and reaction rate reaches a plateau of maximum velocity. "All enzymes are busy"
The sequence of chemical reactions. Begins with initial substrate, than through a number of intermediates, and ends with the final product.
1st law of Thermodynamics (conservation of energy)
Energy is not created or destroyed - it is transformed
2nd law of Themodynamics
The amount of entropy increase every time enery is transformed. Energy transformations are not perfect, some "lost" as heat.
Reactions that convert milescules with more free energy to molecule with less - release energy as they proceed
Use energy from energy releasing reactions (exergonic) to power energy requiring reactions (endergonic)
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