Final answer:
The incorrect statement about fermentation is that it generates oxygen (B). Fermentation is an anaerobic process that produces energy without the presence of oxygen and the end products are ethanol, carbon dioxide, or lactate, not oxygen.
Step-by-step explanation:
The incorrect statement about fermentation in the provided options is B. It generates oxygen. Fermentation is an anaerobic process, meaning it occurs without oxygen. During fermentation, glucose is converted into energy in the form of adenosine triphosphate (ATP), and there is a recycling of NADH to NAD+, but oxygen is not a product of this process.
In contrast to aerobic respiration, which does produce water and carbon dioxide, fermentation's end products can be either ethanol and carbon dioxide in the case of alcoholic fermentation, or lactic acid (lactate) in lactic acid fermentation. When human muscles are lacking oxygen, such as during intense exercise, they produce lactate, which can be later processed back into usable energy. Therefore, statement B is incorrect because fermentation does not generate oxygen but rather happens in its absence.