Question

integrin on the cell surface of a white blood cell binds reversibly with the extracellular matrix of blood vessel walls. this reversibility allows for
heterotypic movement.
homotypic binding.
cell movement.
communication between cells.
passage of dissolved materials.

Explanation:

Integrins are cell - surface receptors that bind to the extracellular matrix. Their reversible binding to the extracellular matrix of blood vessel walls allows white blood cells to move. This is related to cell movement as the ability to bind and un - bind enables the cells to navigate through the blood vessels.

Answer:

cell movement