Question

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arrange the steps of protein transport through the endomembrane system into the correct order (start at the top).
ⓘ instructions
transport vesicles that contain proteins bud from the rough er.
proteins are released to the extracellular environment.
proteins are packaged into secretory vesicles.
proteins are modified in the golgi apparatus.
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Explanation:

This sequence follows the standard secretory pathway of proteins through the endomembrane system. Proteins first leave the rough ER via vesicles, are modified in the Golgi, packaged into secretory vesicles, and finally released outside the cell.

Answer:

1. Transport vesicles that contain proteins bud from the rough ER.
2. Proteins are modified in the Golgi apparatus.
3. Proteins are packaged into secretory vesicles.
4. Proteins are released to the extracellular environment.