The endoplasmic reticulum (ER) plays a major role in the biosynthesis of proteins. Proteins that are synthesized by ribosomes on the ER are transported into the Golgi apparatus for processing. Some of these proteins will be secreted from the cell, others will be inserted into the plasma membrane, and still others will be inserted into lysosomes.
Introduction to Protein Synthesis by Frank Gregorio. This HD dramatic video choreographed to powerful music introduces the viewer/student to protein synthesis in cells. It is designed as a motivational "trailer" to be shown by teachers in Biology classrooms in middle school, high school and college as a visual Introduction to this incredible biochemical process.