Question

what is the main function of the rough endoplasmic reticulum in a plant cell? to use energy from sunlight to make sugar to fill the space between the cell membrane and the nucleus to direct cell activities by sending instructions to different parts of the cell to help ribosomes make proteins

Explanation:

The rough endoplasmic reticulum has ribosomes attached to its surface and is involved in protein - synthesis. Chloroplasts use sunlight to make sugar, the cytoplasm fills the space between the cell membrane and nucleus, and the nucleus directs cell activities.

Answer:

to help ribosomes make proteins