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Organelles

1. The E.R. is so extensive that it accounts for more than __________ of the total membrane in eukaryotic cells.

Cell Organelles

2. The E.R. is an extensive network of membranes that extends from ____________ through the cytoplasm to the __________________.

3. There are ________ types of endoplasmic reticulum. Name them and then describe the differences between them.

The Endoplasmic Reticulum
4. What does the term " endoplasmic reticulum" mean?
5. What does the rough ER specialize in?
6. Name the organelles, in order, that the protein molecules travel through.

Cell Anatomy

Complete the following sentence.
7. The ER is a network of ______________ in the cytoplasm which are _________ with the outer _________ ___________.