Endocytosis is a process in which a substance or compound gains entry into a cell without passing through the lipid cell membrane. Based on the mechanisms and molecules involved, this process can be subdivided into different types: pinocy-tosis, phagocytosis, and receptor-mediated endocytosis. In each case, endocytosis
Figure 4.4. Active transport shows nonlinear pharmacokinetics
Figure 4.4. Active transport shows nonlinear pharmacokinetics results in the formation of an intracellular vesicle by the invagination of the plasma membrane and membrane fusion. Drug molecules can be transported into the cells by this process (Hansen et al., 2005; Liang et al., 2006).
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