The movement of specific molecules into a cell by the infolding of vesicles containing proteins with receptor sites specific to the molecules being taken in.Group of answer choicesphagocytosisautophagyreceptor-mediated endocytosisfacilitated diffusionpinocytosisendocytosisplasmolysisexocytosisNext

The process described is receptor-mediated endocytosis. This is a mode of endocytosis in which specific molecules are ingested into the cell. The specificity results from a receptor-ligand interaction. Here's a step-by-step breakdown:

1. The specific molecule, or ligand, binds to its corresponding receptor on the cell surface.
2. The plasma membrane then invaginates, or folds in, around the receptor-ligand complex.
3. This forms a vesicle containing the ligand and receptor.
4. The vesicle is then brought into the cell, a process known as endocytosis.
5. Once inside the cell, the ligand can be released from the receptor and the vesicle can fuse with other organelles for further processing of the ligand.

So, the answer to your question is receptor-mediated endocytosis.