[en] Experimental data on quasielastic electron scattering by carbon nuclei in the reaction (e,e'p) are presented for incident-electron energies of 1.6 and 2.06 GeV, the electron scattering angles being 19.5 degree sign and 14.2 degree sign , respectively. Recoil protons are detected in the momentum range between 420 and 640 MeV/c. Owing to the chosen kinematical conditions, information about the interaction of electrons with a bound proton can be deduced from analysis based on the plane-wave impulse approximation. The results are compared with predictions of theoretical models