From their these secretory proteins are stored in the E.R. until they are transported to the Golgi Apparatus. A membrane enclosed bag of hydrolytic enzymes that the cell uses to digest macromolecules. The Golgi takes products from the E.R. and modifies, stores, and ships them to other destinations. Mitochondria are found in nearly all eukaryotic cells. The number of mitochondria is related to the cells metabolic activity.
Mitochondria are the sites where cellular respiration takes place.
The nucleus contains the genetic information to control the cell. Chloroplasts contain chlorophyll, enzymes, and other molecules that are involved in the photosynthetic production of food. Prokaryotic Cells Eukaryotic Cells Has an external membrane. Also has an external membrane. Both have ribosomes.