ENDOPLASMIC RETICULM

FUNCTIONS

• It works as a packaging system
• IT doesn't work alone it works with golgi,apparatus,ribososmes

SMOOTH ER

• It acts as a storage organelle
• It is important in creation and storage of steriods and ions
• Ion storage is inportant because sometimes a cell needs ions fast

ROUGH ER

• Very important in synthesis and packaging of proteins
• Proteins might be used in the cell and some are sent out
• Ribosomes ate attached to membrane of er
• When protein is complete the rough er pinches off a vesicle