Rough endoplasmic reticulum makes enzymes for lysosomes
Endoplasmic reticulum is like a conveyor belt that twists through the cell
Endoplasmic reticulum continues off the nuclear membrane
The type of cell determines which has more rough ER or smooth ER
Cells that produce more proteins will have more rough ER
Cells that produce more lipids or steroids will have more smooth ER
Smooth ER does not produce proteins
Most cells contain little smooth ER
Ovaries and testes contain more smooth ER because they produce hormones
Smooth ER involved in production of hormones
Smooth ER stores and regulates the concentration of cellular Calcium
Smooth ER metabolizes carbohydrates
Smooth ER breaks down certain toxins
Smooth ER is abundant in the liver cells