  The unpolarized response functions of the quasielastic $^{16}O(e,e^\prime
p)^{15}N$ reaction are calculated for three different types of relativistic
bound state wave functions. The wave functions are obtained from relativistic
Hartree, relativistic Hartree-Fock and density dependent relativistic Hartree
calculations that reproduce the experimental charge radius of $^{16}$O. The
sensitivity of the unpolarized response functions to the single particle
structure of the different models is investigated in the relativistic plane
wave impulse approximation. Redistributions of the momentum dependence in the
longitudinal and transverse response function can be related to the binding
energy of the single particle states. The interference responses $R_{LT}$ and
$R_{TT}$ reveal a strong sensitivity to the small component of the relativistic
bound state wave function.
