Structure of Sperm

Colour by Numbers Activity

Instructions: Review the illustration. This illustration displays the anatomy and structures comprising a single sperm cell.

Task: Colour each numbered sperm cell structure using the colour indicated in the list below:

  1. acrosome (green)
  2. plasma membrane (red)
  3. nucleus (dark blue)
  4. centriole (grey)
  5. mitochondria (brown)
  6. flagellum (orange)
  7. axial filament (purple)

Image Attribution

The image used in this activity was sourced from OpenStax Anatomy and Physiology OER by Betts, et al., which is licensed under CC BY 4.0. Following OpenStax’s leadership and in the spirit of open education, we have licensed this OER with the same license. 

Image Description

This illustration activity shows the structure of sperm; the major parts are labeled (from left to right): head section (acrosome, plasma membrane, nucleus), mid-piece (centriole, mitochondria, flagellum), tail (flagellum, axial filament), end piece (end piece).