How do fermenting microbes derive energy for themselves in the form of Adenosine Triphosphate (ATP)? (there is no need to write out any metabolic pathway here). How do anaerobically respiring microbes derive energy for themselves in the form of ATP? (there is no need to write out any metabolic pathway here).

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Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."