Which of the following is the best definition of anaerobic respiration? A. Physical activity that increases heart and breathing rates B. The cellular process that converts solar energy to chemical energy when oxygen is not available C. The cellular process that releases energy by breaking down glucose when oxygen is not available D. Physical activity that decreases heart and breathing rates

Biology · High School · Tue Nov 03 2020

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In the process of anaerobic respiration, glucose breaks down without the presence of oxygen. 
Anaerobic respiration produces lactic acid while aerobic respiration produces carbon dioxide and water. 
In this case, the answer is letter C. The cellular process that releases energy by breaking down glucose when oxygen is not available.