APchapter8notes - Chapter8notes AnIntroductiontoMetabolism...

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    Chapter 8 notes An Introduction to Metabolism
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    Concept 8.1 Metabolism :  the totality of an organism’s  chemical reactions metabolic pathway  begins with a  specific molecule and is altered into a  product - each step is catalyzed by an enzyme
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    Concept 8.1 Catabolic pathway : release energy in the  breaking down of complex molecules  into simpler compounds - ex. glucose   CO 2  + H 2 O Anabolic pathway : consume energy to  build complicated molecules from  simpler ones - ex. amino acids   proteins
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    Concept 8.1 Energy : the capacity to do work Reactions (Rxns.) are either  exergonic   (energy outward) or  endergonic   (energy inward) 
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    Concept 8.2 Exergonic rxns . proceed with a net release  of energy  - occur spontaneously Endergonic rxns . absorb free energy from  their surroundings - nonspontaneous
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    Concept 8.2
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    Concept 8.2 Cells do three kinds of work:
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APchapter8notes - Chapter8notes AnIntroductiontoMetabolism...

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