Name Date Color-by-Number Cell The cell is the “building block of life.” It is a basic structural, functional, and biological unit of all organisms. Look at the animal cell below, then color it in according to the key. 3. 1. 4. 5. 6. 2. 8. 7. 9. 11. 10. 12. Color Key 1. mitochondrion (red) 2. vacuole (green) 3. nucleolus (purple) 4. nuclear envelope (light pink) 5. nucleus (dark blue) 6. golgi apparatus (orange) 7. endoplasmic reticulum (dark pink) 8. cytoplasm (light blue) 9. cell membrane (yellow) 10. microvilli (brown) 11. centrioles (lavender) 12. lysosome (grey) Find worksheets, games, lessons & more at education.com/resources © 2007 - 2021 Education.com