Question

Explain the ways in which glucose is
broken down
absence of shortage of
oxygen

​

Answer 1

Explanation:

In the absence of oxygen When breakdown of glucose is carried out in the absence of oxygen in a cell, it is called as anaerobic respiration. This process is called as fermentation in microbes. Ethyl alcohol or lactic acid is produced by the breakdown of pyruvate.

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Answer 2

Answer:

Explanation:

Glucose can be broken down in two ways in the absence of oxygen or in anaerobic conditions:

(i)First step is breakdown of glucose molecule into pyruvate which takes place in cytoplasm.

(ii)

The anaerobic breakdown in bacteria is called Fermentation. During fermentation, pyruvate is broken down to ethyl alcohol and CO2

Whenever there is lack of oxygen in our muscle cells (due to excessive exercise), pyruvate is broken down to lactic acid.

Very less amount of energy is released in both the above cases.

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