Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings

PowerPoint® Lecture Presentations for

!"#$#%&Eighth Edition

Neil Campbell and Jane Reece

Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp

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Una introducción a metabolismo

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Panorama: La energía en los sitemas vivos

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Concepto 8.1: El metabolismo de un organismo, sujeto a las leyes de termodinámica, transforma la materia y energía

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La organización química de la vida es el resultado rutas metabólicas

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Formas de Energía

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Primera ley de termodinámica

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Segunda Ley de Termodinámica

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Orden y Desorden biológico

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Concepto 8.2: El cambio en energía libre de una reacción nos dice si la reacción ocurre o no espontáneamente

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Cambio en energía-libre, G

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Energía libre, estabilidad, y equilibrio

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Reacciones exergónicas y endergónicas en el metabolismo

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Concepto 8.3: ATP promueve el trabajo celular a través del acoplamiento de reacciones exergónicas y endergónicas

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La estructura e hidrolisis de ATP

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Concepto 8.4: Las enzimas aceleran las reacciones metabólicas al bajar barreras energéticas

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Cómo las enzimas bajan la barrera de EA

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Las enzimas son específicas para los substratos

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Catálisis en lugar activo de la Enzima

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Efectos de las Condiciones Locales en la Actividad de la Enzima

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Efectos de Temperatura y pH

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Cofactores

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Inhibidores Enzimáticos

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Concepto 8.5: La regulación de la actividad enzimática ayuda a controlar el metabolismo

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Regulación Alosterica

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Activación e Inhibición Alosterica

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Identificación de Reguladores Alostericos

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Inhibición por retroalimentación

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Localización especifica de las Enzimas

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Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings