Model is underconstrained.
The following variables couldn't be defined:
 * Glc_i in component Glc_i
 * V_HK in component V_HK
 * V_glucose_transport in component V_glucose_transport
 * Glc_6_P_g in component Glc_6_P_g
 * Fru_6_P_g in component Fru_6_P_g
 * V_PFK in component V_PFK
 * V_ALD in component V_ALD
 * GA_3_P_g in component GA_3_P_g
 * DHAP_g in component DHAP_g
 * V_GAPDH in component V_GAPDH
 * V_GDH in component V_GDH
 * V_PGK in component V_PGK
 * three_PGA in component three_PGA
 * two_PGA_c in component two_PGA_c
 * V_PYK in component V_PYK
 * PEP_c in component PEP_c
 * V_pyruvate_transport in component V_pyruvate_transport
 * pyruvate_o in component pyruvate_o
 * glycerol_g in component glycerol_g
 * Q in component Q
 * Gly_3_P_g in component Gly_3_P_g
 * H2O in component H2O
 * O2 in component O2
 * NAD_g in component NAD_g
 * V_GK in component V_GK
 * V_ATP_utilisation in component V_ATP_utilisation
 * ATP_g in component ATP_g
 * P_g in component ATP_g
 * ATP_c in component ATP_c
 * P_c in component ATP_c
 * ADP_g in component ADP_g
 * ADP_c in component ADP_c
 * AMP_g in component AMP_g
 * AMP_c in component AMP_c
 * Km_PEP in component V_PYK
 * Km_Fru_1_6_BP in component V_ALD
 * d/dt Glc_i in component Glc_i
 * d/dt hexose_P_g in component hexose_P_g
 * d/dt Fru_1_6_BP_g in component Fru_1_6_BP_g
 * d/dt triose_P in component triose_P
 * d/dt one_three_BPGA_g in component one_three_BPGA_g
 * d/dt N in component N
 * d/dt PYR_c in component PYR_c
 * d/dt NADH_g in component NADH_g
 * d/dt P_g in component P_g
 * d/dt P_c in component P_c