In Darwin’s day, the cell was thought to be just a simple sac filled with jellied carbon. This concept is the origin of the term protoplasm. However, nearly 150 years of cell research has shown us that even protozoan and fungi cells are hugely complex. Today we know that even such “simple cells” as eukaryotes have an estimated 100,000 parts. Many thousands of different operations are taking place continuously within each of the cell’s many parts, called organelles. Furthermore, the cell cannot live until all these parts are working properly. Even the simple E. coli bacterium has 4,000 genes. If we were able to magnify the DNA of the E. coli to the thickness of a clothesline, it would be five miles long!
If you haven’t previously viewed these two videos, please do. They beautifully illustrate the amazing complexity of a “simple cell”. And don’t forget that all of this amazing complexity and interdependency all just came about by chance, without any intelligent reason or design.