3.4: Cell Structure Varies by Cell Type
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Cell Structure Varies by Cell Type
Cells, even within the same organism, are diverse. In the human body there are about 200 different types of cells. The size, shape, subcellular organelles and structures, and functions of these different cell types vary widely. To illustrate the cell diversity of the human body further, let's consider examples of four cell types: goblet cells, spermatozoa, neurons, and muscle fibers. Carefully examine the diagram and the table below to investigate how these four cells types differ. Please note that the diagram below presents the different cell types in a way that is not to scale when comparing the sizes of one cell type with another. See the table below to compare the typical sizes of these cell types.