Metabolism: Energy & Enzymes

 

I. What is Energy?

       A. Def’n: ability to bring about change & do work

       B. States/Forms

II. Thermodynamics

       A. First law

       B. Second law: Entropy

III. Oxidation-Reduction

IV. Activation Energy

       A. Exergonic/ Endergonic

       B. Classic Graph

       C. Gibb’s Free Energy

V. Enzymes

       A. What are they?  Organic catalysts

       B. How do they work?  Active sites

       C. What factors can affect their activity?

              1. Temperature

              2.  pH

              3.  Presence of specific chemicals

                     a. allosteric inhibitors/activators

                     b. cofactors

                     c. coenzymes

VI. ATP

       A. Structure

       B. Used to drive endergonic reactions

       C. ATP/ADP cycle