def v2r(p,y): return rl.massAction(p.kf_Ald/p.Keq_Ald,y)
def v2f(p,y,z): return rl.massAction(p.kf_Ald,y,z)
def v1f(p,y): return rl.massAction(p.kf_TPI,y)
def v1r(p,y): return rl.massAction(p.kf_TPI/p.Keq_TPI,y)
def vout(p,y): return rl.massAction(p.kout,y)