Question

g. endoplasmic reticulum. materials are transported throughout the cell by a system of channels or canals called the endoplasmic reticulum (er). chemical reactions take place on the surface of the endoplasmic reticulum. in some places it has a rough surface and in other places it is smooth. the rough surface is due to the presence of ribosomes. cells making proteins contain a large amount of rough endoplasmic reticulum (figure 5-6).
figure 5-6. endoplasmic reticulum.
review questions

1. the function of the endoplasmic reticulum is ______.
2. name the two kinds of endoplasmic reticulum.

Explanation:

Question 1

From the text, it says materials are transported throughout the cell by the endoplasmic reticulum (ER) and chemical reactions take place on its surface. So the function is transporting materials throughout the cell and providing a surface for chemical reactions.

The text mentions "in some places it has a rough surface and in other places it is smooth" and "rough endoplasmic reticulum" and implies the other is smooth. So the two kinds are rough endoplasmic reticulum and smooth endoplasmic reticulum.

Answer:

To transport materials throughout the cell and provide a surface for chemical reactions.

Question 2