In the absence of oxygen, the pyruvates are fermented into lactate, which recycles NADH into its oxidizing form, NAD+. If oxygen is present, the cell can reap much more energy through the oxidative decarboxylation of pyruvate and the citric acid cycle. Pyruvate at the Crossroads A cell can use the product of glycolysis, pyruvate, in several metabolic pathways besides decarboxylation.
Turns out the old notion of eating a meal every three to four hours to ramp up oneâs metabolism wasnât exactly perfect advice. In fact, how frequently someone eats has little to do with the speed of their metabolism.
Aerobic metabolism supports sustained, low-intensity activities. Photo Credit Sean Murphy/Lifesize/Getty Images. Aerobic metabolism is a way for your cells to convert fat, carbohydrate and sometimes protein into energy, but only in the presence of oxygen.Aerobic metabolism is slow, so it is useful for sustained activities like jogging or dancing rather than short bursts of effort like sprinting or weightlifting.ignificance. Your body performs aerobic metabolism all day long to provide energy for activities of daily living. Because aerobic metabolism requires water and oxygen, it is the reason that humans breathe constantly and part of the reason why you need to drink water.