SC-003 Science Collection

The Anatomy of a Cell

The structures inside a single cell and what each one does.

Established Biology Series 1: The Anatomy of a Cell · Part 1 of 9

What it is

A cell is the smallest living unit of the body. Its specialized structures work together to use nutrients, make molecules and carry out the tasks that tissues depend on.

Why it matters

Cells form the body’s tissues and organs. Their coordinated work makes movement, sensation, growth and repair possible.

Key points

  • The cytoplasm is the interior where the cell’s structures sit.
  • The cell membrane regulates what enters and leaves.
  • The nucleus houses most of the cell’s DNA.
  • Mitochondria make much of the ATP that powers the cell.
  • The endoplasmic reticulum, Golgi apparatus and ribosomes build, process and ship proteins.

References

  1. MedlinePlus Genetics. What is a cell? Accessed 20 October 2026. medlineplus.gov
  2. Alberts B, et al. Molecular Biology of the Cell, 7th ed. W. W. Norton, 2022.

Related records

Library records describe established biology and published research. They do not describe an effect of any Natal Health product. These statements have not been evaluated by the Food and Drug Administration.

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