Which transport process is the main mechanism for the movement of most macromolecules by body cells? phagocytosis pinocytosis receptor-mediated endocytosis secondary active transport

The correct option is: receptor-mediated endocytosis

Explanation:

Receptor-mediated endocytosis, is an endocytotic mechanism or an internal transport mechanism having diverse functions.

This mechanism is involved in the absorption of some specific biological macromolecules such as the proteins, hormones and the metabolites by the cells via the process of invagination.