A protein molecule,transferrin,embedded in the plasma membrane recognizes iron molecules and causes the plasma membrane to fold in around the iron and take it into the cell.This is an example of

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This process involves a protein receptor (transferrin) embedded in the plasma membrane that recognizes and binds to specific molecules (iron), causing the membrane to fold in and create a vesicle that brings the molecules into the cell. This is a specific type of endocytosis known as receptor-mediated endocytosis. Osmosis and diffusion are passive processes that do not involve protein receptors, while pinocytosis is a non-specific type of endocytosis that involves engulfing extracellular fluid and its contents, rather than specific molecules.

A Protein Molecule,transferrin,embedded in the Plasma Membrane Recognizes Iron Molecules