Why This Matters for Nursing: Cells are the basic units of life. Understanding cell structure helps you understand how medications work (crossing cell membranes), how diseases affect the body, and how tissues heal.
Cells are the smallest units of life that can perform all life functions. The human body contains approximately 37 trillion cells.
| Type | Nucleus | Examples |
|---|---|---|
| Prokaryotic | No membrane-bound nucleus | Bacteria |
| Eukaryotic | Has membrane-bound nucleus | Human cells, plants, fungi |
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