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Transitional ER in AP Biology

Verified for the 2027 exam
Verified for the 2027 exam•Fiveable Content Team

Definition

The transitional endoplasmic reticulum (ER) is a region of the ER that specializes in the final steps of protein and lipid synthesis, including packaging these molecules into transport vesicles.

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AP course connection

Topic 2.1: Cell Structure and Function

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Unit 2

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