Looking Inside Cells

1. The _____ controls the materials that enter and leave the cell.

• cells membrane
• vacuole
• organ system

2. Ribosomes make _____

• vacuoles
• proteins
• organs

3. The _____ is a large structure that directs the cell’s activities.

• nucleus
• proteins
• cell membrane

4. The storage area of a cell is called a(n) _____

• nucleus
• proteins
• vacuole

5. A group of organs that work together to perform a major function is called a(n) _____

• nucleus
• organelle
• organ system

6. _____ are tiny cell structures that carry out specific functions in the cell.

• nucleus
• organelles
• proteins

7. PLANT cells have chloroplasts, but animal cells do not.

• True
• False

8. The cell’s nucleus is filled with a substance called PROTEIN.

• True
• False

9. The specialized cells in a UNICELLULAR organism perform specialized jobs.

• True
• False

10. Ribosomes are made in a special region of the nucleus called the NUCLEOLUS.

• True
• False