Normal cells act as the body's team players, while cancerous cells go rogue.

In some cases, the cell acts as though it cannot wait upon the process of diffusion but must hurry it up.

First the solar cell acts as a charging mechanism for a capacitor.

In normal development, the cells may act in this way so that the developing baby is not attacked by the mother's defence system.

These cells act as a pacemaker for the heart.

These cells act as a barrier and are responsible for establishing permeability gradients.

Such structures provide biologists with information about how cells sense, communicate and act on information about their health.

The cell, with its tiny robotic pilot, would act as a warning light.

Once this change takes place, cells no longer act normally as they should do.

These cells act against the cancer cells effectively and recharge the immune system.