The Cell

The Cell The cell is the fundamental structural unit of all told living organisms. Some cells argon complete organisms, such as the unicellular bacteria and protozoa; others, such as nerve, liver, and muscle cells, are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas, which are 0.1 micrometer in diameter, to the egg yolks of ostriches, which are about 8 cm (about 3 in) in diameter.

Although they may differ wide in appearance and function, all cells have a environ membrane and an internal, water-rich substance called the cytoplasm, the composition of which differs significantly from the external surround of the cell. Within the cell is genetic material, deoxyribonucleic acid (DNA), containing coded instructions for the demeanor and reproduction of the cell and also the chemical machinery for the translation of these instructions into the manufacture of proteins. Viruses are not considered cells because they lack th...If you want to locomote a full essay, order it on our website: Ordercustompaper.com

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