k k2 k3 LDL +R LDLR LDL LDLa k-1 Consider the following rate expressions for receptor ligand kinetics dNldlr = k1CLDLNR - (k2 +k-1) NLDLR dt dNLDL = k2NDLR dt K NLDL; dNlDla : KNLDL; dt Solve the equations assuming: NR= Ng + NLDLR ki(K + Cidl.) = k (k-1 + k) = K ki