Question

Oxygen is necessary for complete oxidation of glucose.
Give Scientific reason..

Answer 1

Aerobic oxidation is the process by which the metabolism of sugars and fatty acids take place in the presence of oxygen to produce energy giving ATP. Looking at the reaction of oxidation of glucose (image attached) we see that glucose is oxidised in the presence of oxygen.

Answer 2

Answer:

Oxygen is necessary for complete oxidation of glucose.

Explanation:

1. When the glucose is oxidised completely, a large amount of energy is produced.

2. In case of aerobic respiration, glucose is completely oxidised. It forms pyruvic acid and it produces acetyl Co - A.

3. This enzyme further enters in TCA cycle and electron transfer chain reaction and produces a large amount of energy in the form of 38 ATP.

4. In case of anaerobic respiration, complete oxidation of glucose does not take place.

5. It results in the fermentation of pyruvic acid. As a result of this, less energy is produced in the form of 2 ATP.

Hence, to produce more amount of energy and thereby oxidise the glucose completely, oxygen is necessary.

Additional Information:

Concepts:

1. Aerobic Respiration:

The respiration in which oxygen is involved is called aerobic respiration.

2. Anaerobic Respiration:

The respiration in which oxygen is not involved is called anaerobic respiration.

3. Glycolysis:

The breakdown of glucose molecule in other constituents is called glycolysis.

4. TCA cycle:

The constituents formed in glycolysis are again broken down and energy is formed.