  We study the effect of the crowded nature of the cellular cytoplasm on the
translocation of a polymer through a pore in a membrane. By systematically
treating the entropic penalty due to crowding, we show that the translocation
dynamics are significantly altered, leading to novel scaling behaviors of the
translocation time in terms of chain length. We also observe new and
qualitatively different translocation regimes depending upon the extent of
crowding, transmembrane chemical potential asymmetry, and polymer length.
