What are different ways in which glucose is oxidised to provide energy in various organism?

Question

Answer

Breaking down of glucose involves two processes. In the first step, it is broken into three-carbon molecules called pyruvate. The pyruvate is further broken down into energy in following different ways in various organisms.

1) Aerobic respiration : In this case, pyruvate is broken down into water and carbon dioxide along with release of energy. It commonly occurs in mitochondria of cells.

2) Anaerobic respiration: In aerobic respiration break down of pyruvate takes place in presence of oxygen to give rise 3 molecules of carbon dioxide and water. And pyruvate is converted into ethanol and carbon dioxide.

Answer

¶¶AEROBIC RESPIRATION... Ultimate source of ATP.¶¶
¶¶ANAEROBIC RESPIRATION...¶¶
¶¶CREATINE PHOSPHATE... Reserve source of ATP..¶¶

Answer

Introduction

Glucose is the primary source of energy for organisms. It undergoes oxidation to release energy that can be utilized by the cells. Different organisms have different mechanisms of glucose oxidation to provide energy.

Aerobic respiration

Aerobic respiration is the most common mechanism of glucose oxidation in organisms. It involves the breakdown of glucose in the presence of oxygen to produce carbon dioxide, water, and energy. The process consists of three stages: glycolysis, Krebs cycle, and electron transport chain.

Anaerobic respiration

Organisms that cannot survive in the presence of oxygen, such as some bacteria and yeast, utilize anaerobic respiration to oxidize glucose. The process involves the breakdown of glucose without the use of oxygen, producing energy, and lactic acid or ethanol.

Fermentation

Fermentation is another mechanism of glucose oxidation, which occurs in the absence of oxygen. It involves the breakdown of glucose to produce energy and lactic acid or ethanol, which can be utilized by the cells.

Photosynthesis

Photosynthesis is a process utilized by plants to produce glucose from carbon dioxide and water in the presence of sunlight. The glucose produced is then oxidized to provide energy for the plant.

Conclusion

In conclusion, glucose is oxidized in various ways to provide energy for organisms. Aerobic respiration, anaerobic respiration, fermentation, and photosynthesis are some of the mechanisms utilized by different organisms to oxidize glucose.

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What are the different ways in which glucose is oxidised to provide energy in various organisms?

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