Cell Organelles Worksheet
Explore the basic structures and functions of cell organelles in this grade 4 science worksheet.
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Cell Organelles: The Tiny Workers Inside Cells
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Read each question carefully and answer to the best of your ability. Use the diagrams to help you.
All living things are made of tiny building blocks called cells. Inside these cells are even tinier parts called organelles, which each have a special job to do. Let's learn about some of them!
1. What is the basic building block of all living things?
Organ
Tissue
Cell
Molecule
2. Which organelle is like the 'brain' of the cell, controlling all its activities?
Mitochondria
Nucleus
Cell Wall
Vacuole
3. The is a stiff outer layer that protects plant cells and gives them shape.
4. Mitochondria are known as the 'powerhouses' of the cell because they produce .
5. Look at the plant cell diagram below. Label the cell wall and the chloroplasts.
6. Animal cells have a cell wall.
True
False
7. Chloroplasts are found in animal cells and help them make their own food.
True
False
Match each organelle with its main job.
8. Nucleus
a. Stores water, food, and waste
9. Mitochondria
b. Controls cell activities
10. Cell Membrane
c. Produces energy for the cell
11. Vacuole
d. Controls what enters and leaves the cell
12. What is one main difference between a plant cell and an animal cell?