Which of the following is the most common pathway taken by a newly synthesised protein that will be secreted by a cell?

Question

Quizplus · Accepted Answer

The most common pathway taken by a newly synthesised protein that will be secreted by a cell is rough ER → Golgi → transport vesicle → plasma membrane. This is the pathway of the secretory proteins that are translated on ribosomes attached to the rough ER, processed and packaged in the Golgi complex, and finally transported in vesicles to the plasma membrane for secretion. Choice A is incorrect because proteins are not transported to the nucleus for secretion. Choice B is incorrect because lysosomes are organelles that contain enzymes that break down macromolecules, not package and transport proteins for secretion. Choice D is incorrect because lysosomes are not involved in the secretion of proteins.

Which of the Following Is the Most Common Pathway Taken