Chapter 19, Problem 19.25UKC

(a)

Interpretation Introduction

Interpretation:

The class of enzymes to which the enzyme involved in the given reaction belongs should be determined.

Concept introduction:

Enzyme:

• It is a protein or a molecule which can act as a catalyst for a biological reaction.
• Does not affect the equilibrium point of the reaction.
• Active site of the enzyme is the region where the reaction takes place.
• Enzyme’s activity can be specific which means the activity is limited to a certain substrate and a certain type of reaction and it is referred to as specificity of the enzyme.

Classification of enzymes:

• Oxidoreductases: Used to catalyse oxidation-reduction reactions.
• Transferases: Used to catalyse transfer of a functional group from one molecule to another.
• Hydrolases: Used to break a large molecule into smaller ones using water.
• Isomerases: Used to catalyse isomerization reactions.
• Lyases: Used to catalyse addition or removal of a small molecule.
• Ligases: Used to catalyse the bonding of two substrate molecules.

(b)

Interpretation Introduction

Interpretation:

The subclass of enzymes which would expect to catalyse the given reaction should be determined.

Concept introduction:

Enzyme:

• It is a protein or a molecule which can act as a catalyst for a biological reaction.
• Does not affect the equilibrium point of the reaction.
• Active site of the enzyme is the region where the reaction takes place.
• Enzyme’s activity can be specific which means the activity is limited to a certain substrate and a certain type of reaction and it is referred to as specificity of the enzyme.

Classification of enzymes:

• Oxidoreductases: Used to catalyse oxidation-reduction reactions.
• Transferases: Used to catalyse transfer of a functional group from one molecule to another.
• Hydrolases: Used to break a large molecule into smaller ones using water.
• Isomerases: Used to catalyse isomerization reactions.
• Lyases: Used to catalyse addition or removal of a small molecule.
• Ligases: Used to catalyse the bonding of two substrate molecules.

(c)

Interpretation Introduction

Interpretation:

The substrate for the given reaction should be determined.

Concept introduction:

Enzyme:

• It is a protein or a molecule which can act as a catalyst for a biological reaction.
• Does not affect the equilibrium point of the reaction.
• Active site of the enzyme is the region where the reaction takes place.
• Enzyme’s activity can be specific which means the activity is limited to a certain substrate and a certain type of reaction and it is referred to as specificity of the enzyme.

Substrate: The substrate is a molecule upon which enzyme acts.

Product: The substrate is transformed into one or more products and after its formation they are released from the active site.

(d)

Interpretation Introduction

Interpretation:

The product for the given reaction should be determined.

Concept introduction:

Enzyme:

• It is a protein or a molecule which can act as a catalyst for a biological reaction.
• Does not affect the equilibrium point of the reaction.
• Active site of the enzyme is the region where the reaction takes place.
• Enzyme’s activity can be specific which means the activity is limited to a certain substrate and a certain type of reaction and it is referred to as specificity of the enzyme.

Substrate: The substrate is a molecule upon which enzyme acts.

Product: The substrate is transformed into one or more products and after its formation they are released from the active site.

(e)

Interpretation Introduction

Interpretation:

The name of the enzyme which is used to catalyse the given reaction should be determined.

Concept introduction:

Enzyme:

• It is a protein or a molecule which can act as a catalyst for a biological reaction.
• Does not affect the equilibrium point of the reaction.
• Active site of the enzyme is the region where the reaction takes place.
• Enzyme’s activity can be specific which means the activity is limited to a certain substrate and a certain type of reaction and it is referred to as specificity of the enzyme.

Classification of enzymes:

• Oxidoreductases: Used to catalyse oxidation-reduction reactions.
• Transferases: Used to catalyse transfer of a functional group from one molecule to another.
• Hydrolases: Used to break a large molecule into smaller ones using water.
• Isomerases: Used to catalyse isomerization reactions.
• Lyases: Used to catalyse addition or removal of a small molecule.
• Ligases: Used to catalyse the bonding of two substrate molecules.