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 Commercial Pilot Licence (excluding the advanced Multi-engine and Instrument ratings) can be completed in as little as a four to six weeks, but this assumes that students have acquired before hand approximately 130 hours flying experience as Pilot-in-command.