1. Explain why the cells of a multicellular organism do not all
look the same. Use scientific vocabulary in your answer.
2. Explain how a pancreas cell knows that it should produce
and secrete insulin after a meal.
Pancreas cell
3. Explain why the nuclear membrane is dotted with pores.
4. Identify the organelle labeled “B,” and describe its function.
B
A
C
D
5. Identify the organelle labeled “C,” and describe its function.
B
A
C
D
6. Identify the organelles labeled “A,” and describe their
function.
B
A
C
D
7. Identify the structure labeled “D” in the diagram, and
explain why it is needed.
B
A
C
D
8. The micrograph below shows a cell taken from the liver of
an alcoholic. Explain why this cell contains an abundance of
smooth ER.