Chapter 19, Problem 3MCP

(a)

Interpretation Introduction

Interpretation:

The concept map that illustrates the relationship allosteric and feedback inhibition has to be created.

Concept Introduction:

There are various methods of regulation of enzymatic activities. One such means is feedback inhibition via allosteric enzymes.

Allosteric enzymes are those enzymes whose active sites have been altered by the binding of certain small molecules called effector molecules. The term allosteric refers to other forms of the enzymes. This is because the allosteric enzyme shaves an additional effector binding site besides the usual active site.

Feedback inhibition serves as an effective metabolic on-off switch mechanism to regulate the activity of an enzyme. The key role in feedback inhibition is played by the allosteric enzymes that serve to inactivate the enzymes that are crucial to the synthesis of the product

(b)

Interpretation Introduction

Interpretation:

The concept map that illustrates the relationship among classes of enzymes by type of reaction and examples has to be created.

Concept Introduction:

The enzymes are essentially the biocatalysts present in all living systems. Each enzyme catalyzes a characteristic reaction within the biological system. Enzymes are generally named in accordance with the substrate on which they act. For example, enzyme urease is named by the addition of the suffix –ase to the name of the substrate urea on which this enzyme acts. Similarly, the enzyme sucrase derives its name from sucrose as it hydrolyzes the linkages of sucrose to yield fructose and glucose monomers of disaccharide sucrose.