Ernie Rough ER
The Folding Foreman
Ernie is covered with ribosomes (that's why he's 'rough'!). He works with them to help make, fold, and prepare proteins for their next destination.
What Ernie Does
1
Provides a surface for ribosomes to build proteins
2
Folds proteins into the right shape
3
Packages proteins in tiny bubbles for shipping
4
Connects to Nora Nucleus to get instructions faster
Free Printables
Print or download these fun activities for Ernie.
Want to go deeper with Ernie?
Explore more in the Life in Cellville™ Complete Cell Biology Curriculum — Grades 3–8, with a 148-page Student Workbook, Teacher Guide & Answer Key, and 13 original science songs.
Explore the Complete CurriculumKeep Exploring Cellville
Keep exploring! Follow the crew members who work together, then try a story, song, or printable.