🧬ap biology review

Endoplasmic Reticulum

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The endoplasmic reticulum (ER) is an organelle within cells that serves as a production and packaging system. It's involved in protein synthesis, lipid metabolism, and detoxification processes.

"Endoplasmic Reticulum" also found in: