The Cell The cell represents the fundamental, structural, and functional unit of all living organisms. It is within the cell that the intricate processes of life unfold, from energy production to genetic information storage and protein synthesis. Modern cell theory, a cornerstone of biology, is built upon several key tenets that have revolutionized our understanding of life. Firstly, all known living organisms are composed of one or more cells. Secondly, all cells arise from pre-existing cells by division. Thirdly, the cell is the fundamental unit of structure and function in all living organisms. This theory highlights the universality of cellular life and the importance of cellular processes in maintaining life itself. Understanding the cell is therefore paramount to grasping the broader principles of anatomy and physiology.
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