Fig. 1. (A) L-arabinose, (B) L-rhamnose and (3) 3-O-methyl-D-glucose injected (filled symbols, solid lines) and gavaged (unfilled symbols, broken lines) into rats (right panels) and pigeons (left panels) were cleared from the blood rapidly and mono-exponentially. Insets show probe concentrations for the final three blood sampling times (t=90, 150, 240 min) on a semi-logarithmic plot. Values are means ± s.e.m. (N=6).