Final answer:
Collagen is the most abundant glycoprotein in the ECM and attaches to integrins, connecting the ECM to the cell interior and facilitating cell communication.
Step-by-step explanation:
The most abundant glycoprotein in the extracellular matrix (ECM) is collagen. This protein attaches to integrins, which are proteins in the plasma membrane that connect the ECM with the inside of the cell. Collagen fibers are essential for the structural integrity of the ECM, providing strength and support to tissues. They are interwoven with carbohydrate-containing protein molecules called proteoglycans. The ECM is vital not only for holding cells together to form tissue but also for enabling communication between cells.
The most abundant glycoprotein in the extracellular matrix (ECM) is collagen. This protein attaches to integrins, which are proteins in the plasma membrane that connect the ECM with the inside of the cell.