Question

select the part whose main job is to make lipids. chromosomes smooth endoplasmic reticulum rough endoplasmic reticulum golgi

Explanation:

The smooth endoplasmic reticulum is responsible for lipid synthesis. Chromosomes carry genetic information. The rough endoplasmic reticulum is involved in protein synthesis. The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or use within the cell.

Answer:

smooth endoplasmic reticulum