Chapter 23.5, Problem 30SSC

Interpretation Introduction

(a)

Interpretation:

Whether photosynthesis is anabolic or catabolic should be determined.

Concept introduction:

An important part of the growth, function and development for the body is known as metabolism. Metabolism is classified as catabolism and anabolism.

In the anabolic process, the molecules are created which are needed for the body’s functionality

In the catabolic process, complex molecules are break down into smaller molecules and results in the release of energy.

Answer to Problem 30SSC

Photosynthesis process is anabolic.

Explanation of Solution

The process in which light energy converts into chemical energy and stores the energy in chemical bonds of sugar or sugar-like species is known as photosynthesis. In this process, carbon dioxide reacts with water molecules to form glucose and oxygen.

The chemical reaction is:

${\text{6CO}}_{\text{2}}{\text{+6H}}_{\text{2}}\text{O+Energy}\to {\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}{\text{+6O}}_{\text{2}}$

On the basis of the above definition and reaction, a combination of small molecules or species results in the formation of sugar (bigger molecule). Thus, the photosynthesis process is anabolic.

Interpretation Introduction

(b)

Interpretation:

Whether cellular respiration is anabolic or catabolic should be determined.

Concept introduction:

An important part of the growth, function and development for the body is known as metabolism. Metabolism is classified as catabolism and anabolism.

In the anabolic process, the molecules are created which are needed for the body’s functionality

In the catabolic process, complex molecules are break down into smaller molecules and results in the release of energy.

Answer to Problem 30SSC

Cellular respiration process is catabolic.

Explanation of Solution

A set of metabolic reactions that takes place in the organism cell to convert chemical energy from molecules of oxygen into ATP that is adenosine triphosphate is known as cellular respiration. In this process, glucose breaks down in the presence of oxygen and produces carbon dioxide with the release of water and energy.

The chemical reaction is:

${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}{\text{+6O}}_{\text{2}}\to {\text{6CO}}_{\text{2}}{\text{+6H}}_{\text{2}}\text{O+energy}$

On the basis of the above definition and reaction, sugar molecule breaks down into smaller molecules. Thus, the cellular respiration process is catabolic.

Interpretation Introduction

(c)

Interpretation:

Whether fermentation is anabolic or catabolic should be determined

Concept introduction:

An important part of the growth, function and development for the body is known as metabolism. Metabolism is classified as catabolism and anabolism.

In the anabolic process, the molecules are created which are needed for the body’s functionality

In the catabolic process, complex molecules are break down into smaller molecules and results in the release of energy.

Answer to Problem 30SSC

The fermentation process is catabolic.

Explanation of Solution

A metabolic process that results in chemical changes in organic substrates by the action of enzymes is known as fermentation. It is also defined as the energy is extracted from the carbohydrates in the absence of oxygen. In this process, glucose breaks down in the absence of oxygen.

The chemical reaction is:

${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}\to {\text{2C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH}+\text{2CO}$

On the basis of the above definition and reaction, the sugar molecule breaks down into smaller molecules. Thus, the fermentation process is catabolic.