Question

select the part whose main job is to help ribosomes make proteins.
chloroplast golgi
vacuole rough endoplasmic
reticulum

Explanation:

To solve this, we analyze each option:

• Chloroplast: Involved in photosynthesis, not protein synthesis assistance.
• Golgi apparatus: Modifies, sorts, and packages proteins, not directly helping ribosomes make proteins.
• Vacuole: Stores substances, has no role in protein synthesis assistance.
• Rough endoplasmic reticulum (RER): Has ribosomes on its surface and helps ribosomes in protein synthesis by providing a site and aiding in the process.

Answer:

rough endoplasmic reticulum