This ability to communicate between cells is crucial to large multicellular organisms because it allows organisms to coordinate the activity of all their cells. Lock and key model of cell communication Here concludes this tour of a cell. Stops along the way have included a large number of the structures and functions of the cell. Remember that the cell is an incredibly complex unit of life. It needs to carry out all the functions of life.
Nerve cells send chemical signals to other cells.
Soon, we'll take a closer look at some of the functions of a cell and investigate how plant cells transform energy, how all cells utilize cellular energy, and how cells grow and divide. Then, we'll examine the contents of the nucleus of the cell in great detail and see why DNA is such a powerful molecule. Today, breakthroughs in genetic research occur every week. None of them would be possible without an understanding of cell theory. Inc. All rights reserved.