a ribosome the endoplasmic reticulum the Golgi apparatus a vacuole
I gave my students this multiple choice question: In a cell, a newly synthesized protein requires modification by the addition of a carbohydrate. Which structure will transport the protein from the site of synthesis to the site of modification?

Only one answer is correct among these 4 choices:
- a ribosome
- the endoplasmic reticulum
- the Golgi apparatus
- a vacuole

Could you tell me which one is correct?

the endoplasmic reticulum