Question

what are the different ways in which glucose is oxidised to provide energy in various organism?​

Answer 1

Answer:

In aerobic respiration, the breakdown of pyruvate occurs in oxygen to give rise to 3 molecules of carbon dioxide and water. The release of energy in aerobic respiration is much more than anaerobic respiration.

Explanation:

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Answer 2

Answer:

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Glucose is a vital energy source for all organisms. The nutrition consumed is converted into carbohydrates, in which glucose is the key ingredient. The glucose is oxidized to provide energy to the organism.

Breakdown of glucose

We know glucose is a huge molecule and breaks down into different smaller units. At first, glucose-containing 6 carbon molecules are broken in the cytoplasm of all organisms’ cells. In this process, we obtain a 3 carbon molecule compound called pyruvate. Further, the breakdown of pyruvate takes place in different manners in different organisms.

Different ways in which glucose breaks down

Following are the different ways in which the breakdown of glucose takes place

Anaerobic Respiration

The anaerobic respiration process takes place in the absence of oxygen. For example: In yeast during fermentation. In this process, the pyruvate is converted into ethanol and carbon dioxide.

Aerobic Respiration

In aerobic respiration, the breakdown of pyruvate occurs in oxygen to give rise to 3 molecules of carbon dioxide and water. The release of energy in aerobic respiration is much more than anaerobic respiration.

Lack of Oxygen

At times when there is a lack of oxygen in our body, mainly during vigorous activity, in our muscles, pyruvate is converted into lactic acid, which is a 3 carbon molecule compound. The formation of lactic acid in muscles causes cramp.

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