In computational complexity theory, a problem refers to the abstract question to be solved. In contrast, an instance of this problem is a rather concrete utterance, which can serve as the input for a decision problem. For example, consider the problem of primality testing.
Oxygen plays a vital role in both the aerobic and anaerobic metabolic systems. While oxygen is required as a direct energy source in the aerobic system, it is also essential in clearing the blood of excess lactic acid buildup in the anaerobic system.
Amphibolic nature of Krebs. Cycle. How what we are is what we eat. â¢ In aerobic organisms, the citric acid cycle is. an amphibolic pathway, one that serves in. both catabolic and anabolic processes. â¢ Since the citric acid does both synthesis. (anabolic) and breakdown (catabolic) activities, it.