Question

Mention two ways in which food gets oxidized in organisms ? ​

Answer 1

Answer:

Aerobic respiration : In this case pyruvate is broken down into water and carbon dioxide along with release of energy. ...

Anaerobic respiration in yeast : In yeast cells during fermentation pyruvate is converted into ethanol and C02 in the absence of 02.

Answer 2

Answer:

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Explanation:

1) Anaerobic respiration:

Here the first step is the break-down of glucose into a three-carbon molecule called pyruvate. This process takes place in the cytoplasm. Further, the pyruvate may be converted into ethanol and carbon dioxide. This process takes place in yeast.

2) Aerobic respiration :

During aerobic respiration, first glucose is broken down into pyruvate and then  the three-carbon pyruvate molecule is broken down to give three molecules of carbon dioxide and water.