BS111-lecture 9 - Summary of Lecture Eight Energy Types of...

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1 Summary of Lecture Eight Energy Types of energy/work in chemistry/biology Potential and Kinetic energy & Conversion between them First Law of Thermodynamics Second Law of Thermodynamics Enthalpy & Entropy equation= Gibbs free energy
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2 Energy Chemical equilibrium and free energy Standard free energy ATP: Potential to Free energy Used to drive endothermic reactions (i.e. build and create order).
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3 II. Enzymes Proteins Sterospecificity Reaction specificity There are classes of Enzymes A + B C
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4 A. Enzymes and Energy Kinetics (reaction rates) 1 r a k E a Some reactions are slow because of an energy barrier = the amount of energy required to start the reaction activation energy ( E a ) Enzymes are Catalyst
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5 Overcome Ea with extreme conditions.
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6 Enyzmes lower the activation energy barrier, Ea
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B. Enzyme and their Substrates Biological catalysts (enzymes) are highly specific for their substrates that bind at the active site . The specificity is due to three-dimensional shape of
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BS111-lecture 9 - Summary of Lecture Eight Energy Types of...

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