Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052



Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 10, Problem 3QP
Textbook Problem

Enzymes have all the following characteristics except:

  1. a.                  they act as biological catalysts
  2. b.                  they are proteins
  3. c.                   they carry out random chemical reactions
  4. d.                  they convert substrates into products
  5. e.                   they can cause genetic disease

Summary Introduction

Introduction:  Enzymes are biological molecules that speed up or enhance a chemical reaction taking place in living systems. There are different types of enzymes that speed up different types of reactions. During certain metabolic reactions, enzymes play an important role. Deficiency of any of the enzymes working in living systems can affect proper functioning of that whole system or one or more reactions being carried out in that living system.

Explanation of Solution

Reason for correct answer:

Some protein molecules are synthesized in living organisms to carry out special function of enhancing specific biochemical reactions. These special protein molecules are called enzymes. They act as biological catalysts for the specific reactions and convert the reactants in the reaction into the required products. Improper functioning or inadequate amount of any enzyme may occur because of a defect in the gene that codes for the synthesis of that particular enzyme (protein). These diseases are categorized as genetic disorders.

Option c. is given as “they carry out random chemical reactions”

Particular enzyme acts on a specific type of reaction. enzymes do not act randomly on any any chemical reaction that is going on in a living system. Hence, the correct answer is option c..

Reasons for incorrect answer:

Option a. is given as, “they act as biological catalysts”.

Enzymes are biological catalysts that speed up specific biochemical reactions taking place in a biological system...

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