on the basis of the very low catalytic activity of b for co2 in the presence of physiological concentration of chloride , and the fact that carbonic anhydrase c is effective for co2 hydration ( in the presence of chloride ) at a rate 340 times greater than that of co2 output from tissues , it appears that the biological role of enzyme b is not that of a carbonic anhydrase .
C0007034
carbonic
C0007028
carbonic anhydrase