Biology, asked by ItzBeautyBabe, 5 months ago

Explain the three pathways of the breakdown of Glucose :)​

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Answered by MissRostedKaju
1

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Explain the three pathways of the breakdown of Glucose ?

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In all organisms, glucose is first converted into pyruvate. Glucose is a 6-carbon molecule, while pyruvate is a 3-carbon molecule. This step is same in all organisms and it happens in the cytoplasm. Further breakdown of pyruvate can happen in any of the following ways:

  1. In Yeast: In yeast, breakdown of pyruvate take place in absence of oxygen. Due to this, it is called anaerobic respiration. Pyruvate is broken down into ethanol and carbon dioxide.
  2. In muscle cells: During strenuous physical activity, the energy demand from muscle cells suddenly increases. This is compensated by anaerobic respiration in muscle cells. In such a situation, pyruvate is broken down into lactic acid.
  3. In mitochondria: In this case, breakdown of pyruvate takes place in presence of oxygen. Due to this, it is called aerobic respiration. Pyruvate is broken down into carbon dioxide and water. Aerobic respiration is found in most of the living beings.
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Answered by Anonymous
3

Heya Good Question!

Explain the three Pathways of The breakdown of glucose?

The three Pathways of breakdown of glucose in living organism are as follows :

Aerobic Respiration - It takes place in mitochondria in the presence of oxygen. pyruvic acid is converted into carbon dioxide and water thus it releasing a lot of energy.

Anaerobic Respiration - This process takes place in the absence of oxygen. e. g. in yeast during fermentation, in the cytoplasm.

Lack of Oxygen - At time, when there is a lack of oxygen in our body mainly during vigorous activity our muscles then pyruvate is converted into lactic acid which is a 3 carbon molecules compound , The formation of lactic acid in muscles causes cramp.

Hope it helps you dear.

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