Question

question 16 1 pts polypeptides (proteins) that are transported in vesicles are first made by ribosomes rough endoplasmic reticulum. the golgi apparatus. nucleus

Explanation:

Proteins transported via vesicles start their synthesis on ribosomes that attach to the rough endoplasmic reticulum. The rough ER provides the site, but ribosomes are the molecular machines that assemble the polypeptide chain. The Golgi apparatus modifies and sorts already made proteins, and the nucleus holds genetic material, not making proteins directly.

Answer:

ribosomes