What occurs during convection related to dissolved substances in a solvent?

Convection involves the movement of a fluid, which can include a solvent, that carries dissolved substances along with it. When convection occurs, the bulk movement of the fluid creates currents that transport these dissolved molecules throughout the solvent. This means that as the fluid moves, the dissolved substances are effectively 'dragged along' with the flow.

In processes like hemodialysis, convection is an essential mechanism for removing waste products from the blood. It allows for a more efficient exchange of solutes, helping to clear toxins as the dialysate flows and carries away unwanted particles. By understanding convection in this context, it becomes clear how it enhances the transport of dissolved molecules in a solvent, providing effective solutions in clinical settings.