The organelles present in a Eukaryotic cell and there functions are the following: The Nucleus - the nucleus controls all the cells activities, it houses the DNA. Rough Endoplasmic Reticulum - The Rough Endoplasmic Reticulum is attached to the nucleus and covered in ribosomes, it is the site of transcription in which mRNA is converted into proteins. Smooth Endoplasmic Reticulum - The smooth endoplasmic reticulum is found in the cytoplasm of the cell and has the role of lipid and carbohydrate synthesis and the storage of fats. OTHER ORGANELLES THAT COULD BE USED TO ANSWER THIS QUESTION - Golgi Apparatus, Lysosomes and Mitochondria.