Multiple Choice
In eukaryotic cells, what is the primary function of the rough endoplasmic reticulum (rough ER)?
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13. Intracellular Protein Transport
ER Processing and Transport
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In the context of ER processing and transport, what is the primary function of the rough endoplasmic reticulum (rough ER)?
A
It synthesizes and begins processing proteins destined for secretion, insertion into membranes, or delivery to lysosomes.
B
It produces ATP through oxidative phosphorylation in the inner membrane.
C
It modifies, sorts, and packages proteins into vesicles for export from the cell.
D
It carries out most cellular lipid and steroid synthesis and detoxifies drugs.
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