Page 98 - Radiation Safety

Endoplasmic Reticulum

• The ER is the site of the translation and folding of and

transport of proteins that are to become part of the cell

membrane as well as proteins that are to be secreted

from the cell (e.g., digestive enzymes).

• Rough ER manufactures and transports proteins destined

for membranes and secretion,

• The smooth ER has functions in several metabolic

processes such as synthesis of various lipids (e.g., for

building membranes) and steroids (e.g., hormones), and

also plays an important role in carbohydrate metabolism,

detoxification of the cell, and calcium storage.