Question

which of the following correctly shows the sequence of organelles a protein would take being exported from the cell? (1 point)
ribosome → vesicle → rough er → vesicle → golgi apparatus → cell membrane
ribosome → smooth er → vesicle → cell membrane → vesicle → rough er
ribosome → rough er → vesicle → golgi apparatus → vesicle → cell membrane
smooth er → vesicle → golgi apparatus → rough er → vesicle → nucleus

Explanation:

Protein synthesis starts at ribosomes. Proteins for export are made on ribosomes attached to the rough endoplasmic reticulum (RER). They are then transported in vesicles to the Golgi apparatus for modification and sorting. Finally, vesicles from the Golgi fuse with the cell - membrane to export the protein.

Answer:

Ribosome → Rough ER → Vesicle → Golgi Apparatus → Vesicle → Cell Membrane