What are the shapes of the endoplasmic reticulum and Golgi apparatus?

The endoplasmic reticulum is a network of membranous tubules found within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane.

It usually has ribosomes attached and is involved in protein and lipid synthesis. The endoplasmic reticulum is a type of cell organelle that can be classified into two different forms based on the presence of ribosomes on their surface– the rough endoplasmic reticulum, and smooth endoplasmic reticulum.

The Golgi apparatus is part of the endomembrane system in the cytoplasm. It packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination.

Golgi bodies receive proteins and fats from the RER (Rough Endoplasmic Reticulum). It modifies them if required and packages them into sealed droplets known as vesicles. These vesicles (containing modified proteins and fats) are released or dispatched to their required destination.