Choose all the answers that apply. the rough endoplasmic reticulum contains ribosomes is responsible for protein synthesis is responsible for lipid synthesis does not contain ribosomes

Explanation:

The endoplasmic reticulum is an organelle that is related to the synthesis of organic molecules. There are 2 types of reticulum: smooth and rough, which have different shapes and functions.

Rough is associated with ribosomes and protein synthesis, whereas smooth produces lipids. The crosshairs are membrane structures composed of flat sacs located in the cytosol of the cell.