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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.