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Cell
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The cell is the basic piece that every living thing is built from, and the human body is made of trillions of them. Everything we are starts there.
A cell is not an inert brick. It gives the body its structure, takes in the nutrients that arrive from food, turns them into energy, and on top of that carries out specialized functions depending on where it happens to live: a cell in the liver does not do the same job as one in the skin.
And inside it has parts, each with its own task. Some are called organelles and are specialized structures, small departments with trades of their own. Among them the nucleus stands out, working as the command center: the instructions leave from there telling the cell when to grow, when to mature, when to divide, and when to die.
In brief
Cells are the basic building blocks of all living things, and the human body is composed of trillions of them.
They are not inert parts: they provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Inside, a cell has many parts with different functions: some, called organelles, are specialized structures, and the nucleus acts as the command center.
Sources (1)
- MedlinePlus GeneticsWhat is a cell?
This page explains the topic in general terms; it does not tell anyone what treatment to follow.
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