Becker's World of the Cell (9th Edition)
Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 6, Problem 6.3PS

(a)

Summary Introduction

To calculate: The time required to decompose the H2O2, in the presence of ferric ions equivalent to the iron content of 1 µg of catalase.

Introduction: Hydrogen peroxide is catalyzed by the enzyme catalase and converts it into water and oxygen molecule. Many ways can accelerate the rate of the hydrogen peroxide decomposition.

(b)

Summary Introduction

To calculate: The time required to decompose the same amount of H2O2, in the absence of a catalyst.

Introduction: Catalase is an enzyme which decomposes the hydrogen peroxide into hydrogen and oxygen. Ferric ions act as an inorganic catalyst and lower the activation energy of the reaction.

(c)

Summary Introduction

To explain: In what way these calculations illustrate the indispensability of catalysts and the superiority of enzymes over inorganic catalysts.

Introduction: Catalase is an enzyme which decomposes the hydrogen peroxide into hydrogen and oxygen. Ferric ions act as an inorganic catalyst and lower the activation energy of the reaction.

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