The route that most accurately describes secretory protein movement through the endomembrane would be
A)Golgi apparatus$\rarr$lysosome$\rarr$vesicles$\rarr$plasma membrane
B)plasmid$\rarr$plasma membrane$\rarr$nuclear envelope$\rarr$smooth endoplasmic reticulum
C)nuclear envelope$\rarr$vesicles$\rarr$Golgi apparatus$\rarr$plasma membrane
D)rough endoplasmic reticulum$\rarr$lysosomes$\rarr$vesicles$\rarr$cell membrane
E)rough endoplasmic reticulum$\rarr$ Golgi apparatus$\rarr$vesicles $\rarr$plasma membrane

Question

Quizplus · Accepted Answer

Secretory proteins are initially synthesized on the rough endoplasmic reticulum (RER) and enter the lumen of the RER. From there, they are transported in vesicles to the Golgi apparatus for further modification and sorting. After sorting, the secretory proteins are packaged into vesicles and transported to the plasma membrane for secretion. Choice E accurately describes this movement of secretory proteins.

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