Read the following statements and choose the correct option: 1. In fermentation, say by yeast, the incomplete oxidation of glucose is achieved under anaerobic conditions by set of reactions where pyruvic acid is converted to CO2 and Ethanol. 2. The enzymes, pyruvic acid anhydrase and alcohol hydrogenase catalyse these reactions. 3. Some Organisms like bacteria produce lactic acid from pyruvic acid. 4. In animal cells

Step-by-step solution

In fermentation, say by yeast, the incomplete oxidation of glucose is achieved under anaerobic conditions by set of reactions where pyruvic acid is converted to CO2 and Ethanol. The enzymes, pyruvic acid decarboxylase and alcohol dehydrogenase catalyse these reactions. Some Organisms like bacteria produce lactic acid from pyruvic acid. In animal cells, like muscles during exercise, when oxygen is in inadequate amount for cellular respiration pyruvic acid is reduced to lactic acid by lactate dehydrogenase.