Section 1
Studying Cells
Book
Version 32
By Boundless
By Boundless
Boundless Biology
Biology
by Boundless
4 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/18581/square/figure-04-00-00.jpeg)
Cells as the Basic Unit of Life
A cell is the smallest unit of a living thing and is the basic building block of all organisms.
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Microscopy
Microscopes allow for magnification and visualization of cells and cellular components that cannot be seen with the naked eye.
![Thumbnail](../../../../../../figures.boundless-cdn.com/20244/square/l-cell-in-three-dimensions.jpg)
Cell Theory
Cell theory states: living things are composed of one or more cells; the cell is the basic unit of life; cells arise from existing cells.
Cell Size
Cell size is limited in accordance with the ratio of cell surface area to volume.