Exemplar Problems

Question:

Provide an overview of the process of alcoholic fermentation, including the key metabolic reactions and the role of microorganisms in its applications.

Answer:

Alcoholic fermentation is an anaerobic process primarily used by yeast and some microorganisms. During this process, pyruvate, generated in glycolysis, is converted into ethanol (alcohol) and carbon dioxide (CO2). This conversion regenerates NAD+ required for glycolysis to continue. Alcoholic fermentation is widely used in the production of alcoholic beverages such as wine and beer and is also essential in bread-making, where CO2 production causes dough to rise.

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