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Basics of Biology

Basic Chemistry For Biology

How does the nucleus of an atom differ from the nucleus of an organism’s cell?

The English word “nucleus” is derived from the Latin word nucula, meaning “kernel” or “core.” The nucleus of an atom is an enclosed, positively charged center, containing protons and neutrons. The nucleus of an organism’s cell is a membrane-enclosed feature (called an organelle) that contains the genetic material of that cell (for more information about cells, see the chapter “Cellular Basics”).



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