The next phase of aerobic respiration is the Citric Acid Cycle, also known as the Kreb's Cycle, named for the biochemist who discovered it. To prepare for this stage, the pyruvate molecules from glycolysis are converted to a 2-carbon compound called Acetyl CoA.
Commercial pilots working in nonscheduled air transportation earned $78,010 on average in 2011, the bureau says. Those employed by technical schools and trade schools averaged $66,070, and workers providing support activities for air transportation earned $71,440.
The highest-paid commercial pilots worked in aerospace manufacturing, earning an average of $102,850 per year. Those who worked in spectator sports averaged $99,970 a year. Commercial pilots working in ambulatory health care averaged $68,090 per year, while those in agriculture averaged $61,010 a year.