Name: 
 

Cell Organelles



Completion
Complete each sentence or statement.
 

1. 

All cells are surrounded by a _____   ___________.
 

 

2. 

The _____   __________ acts as a barrier between the inside of the cell and the cell's environment.
 

 

3. 

The ____   ___________ controls the passage of materials in or out of the cell.
 

 

4. 

What structure allows cells to take in nutrients and dispose of waste.
 

 

5. 

_____________ are structures inside the cell that maintain the life of the cell.
 

 

6. 

A fluid known as _____________ surrounds the organelles of the cell.
 

 

7. 

Many organisms have cells that contain a large organelle, called a ___________, near the center of the cell.
 

 

8. 

Why is the nucleus referred to as the control center of the cell?
 

 

9. 

A cell's genetic information is contained within structures called _________________.
 

 

10. 

The nucleus is surrounded by a thin membrane called the _______   ____________.
 

 

11. 

Chemical reactions occur in the ________________ that transfer energy from organic compounds to ATP.
 

 

12. 

Small, round organelles called ________________ are where amino acids are linked together to form proteins.
 

 

13. 

The _______________   ________________ is a system of folds and channels that is responsible for transporting materials throughout the cell.
 

 

14. 

Some endoplasmic reticulum (ER) are covered by _________________.
 

 

15. 

The ____________ formed in the ribosomes pass into the ER, where they are transported for use elsewhere.
 

 

16. 

The _____   ____________ is responsible for transporting proteins and other materials.
 

 

17. 

The _________   _______________ modifies materials for different functions, encloses them in a piece of its membrane, and then pinches them off to form small compartments. The compartments then transport their contents to other parts of the cell or outside the cell.
 

 

18. 

_______________ are small sac-like organelles that contain enzymes. These enzymes might digest, or break down, proteins, carbohydrates, lipids, and nucleic acids. They might also destroy worn-out or damaged organelles, rid wastes, and protect the cell from foreign invaders.
 

 

19. 

_______   ______ are linked together at ribosomes.
 

 

20. 

Materials that enter into a cell must pass through the _____   ________________.
 

 

21. 

______________ are located in the nucleus.
 

 

Other
 

22. 

Keeping in mind the information covered by the above questions, review the following diagram of a typical eukaryotic cell. How does this eukaryotic cell differ from a prokaryotic cell?
cell_organelles_files/i0240000.jpg
 

23. 

Look at the following diagram of a typical plant cell. How does it differ from the typical animal cell shown in the previous question?
cell_organelles_files/i0250000.jpg
 

24. 

The table below will help you remember the differences among prokaryotes, plant cells, and animal cells. Memorize this and you'll be in great shape.
cell_organelles_files/i0260000.jpg
 



 
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