FIG 2 illustrates {HEAD ~ the biochemical steps} involved with the conversion of {TAIL ~ TCE} to carbon dioxide 
FIG 2 illustrates { HEAD ~ the biochemical steps } involved with the conversion of { TAIL ~ TCE } to carbon dioxide
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH