Fig. 5. Incorporation of ¹⁴C into the trichloroacetic acid (TCA)-soluble fractions of A. viridis after incubation in (A) NaH¹⁴CO₃, as in Fig. 3B, (B) [¹⁴C]glucose + [¹⁴C]succinate, (C) [¹⁴C]glucose + [¹⁴C]fumarate, (D) [¹⁴C]glycerol + [¹⁴C]succinate and (E) [¹⁴C]glycerol + [¹⁴C]fumarate. Experiments were performed over 5 min and, except in A, in the presence of 5 µmol l^–1 dichlorophenyl dimethyl urea (DCMU). Data are expressed as a percentage of the total label in the TCA-soluble fraction. Bars (except in A) represent the means ± S.E.M. of 5–6 replicates.