Assertion: endoplasmic reticulum | /r/HasProperty | rough er
Facets:
Source sentences:
text: The cells of the liver, ovaries and testes have a high density of smooth endoplasmic reticulum (smooth ER, or simply SER), whereas organs that secrete a great deal of protein, such as the pancreas, have cells rich in rough endoplasmic reticulum (rough ER, or simply RER).