The following items are organelles found in animal cells. respond to the statements below with reference to these organelles. this organelle is the site of polypeptide assembly. this two-part organelle is found in the endoplasmic reticulum. the cellular digestion and disposal of biological molecules occurs inside this organelle. this organelle plays a role in cell defense. aerobic respiration occurs in this organelle. a. ribosome b. mitochondrion c. lysosome d. golgi body e. endoplasmic reticulum fast !