Question
In the following flow chart, replace the symbols a,b,c and d with appropriate terms. Briefly explain the process and give any two application of it.
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Answer
This figure shows the major pathways of anaerobic respiration or fermentation. Glycolysis is shown on the lefthand side, while further processing of pyruvic acid is shown on the right-hand side.
In animal cells also, like muscles during exercise, when oxygen is inadequate for cellular respiration pyruvic acid is reduced to lactic acid by lactate dehydrogenase. In certain organisms, pyruvic acid is processed to produce ethanol and carbon dioxide. Some amount of energy is released in both cases.
Two applications of anaerobic respiration are as follows:
i. In making fluffy cakes and bread anaerobically reproducing fungi yeast is used.
ii. In making curd lactobacillus is added as inoculum.
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