Introduction to Cell Organelles
Explore the basic parts of plant and animal cells and their functions with this engaging worksheet for 3rd graders.
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Introduction to Cell Organelles
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Read each question carefully and answer to the best of your ability. Use the diagrams to help you!
1. What is a cell? Why are cells important for living things?
Look at the plant cell diagram below. Fill in the blanks with the correct cell part.
2. The strong outer layer of a plant cell is called the .
3. The part that makes food for the plant using sunlight is the .
4. This jelly-like substance that fills the cell is the .
Look at the animal cell diagram below and answer the questions.
5. Which part of the animal cell controls what goes in and out of the cell?
Cell Wall
Nucleus
Cell Membrane
Chloroplast
6. Which part is like the 'brain' of the cell, controlling all its activities?
Cytoplasm
Nucleus
Vacuole
Cell Membrane
Read each statement and decide if it is True or False.
7. Plant cells have a cell wall, but animal cells do not.
True
False
8. All cells are exactly the same size and shape.
True
False
Match each cell organelle on the left with its correct job on the right.
9. Nucleus
a. Stores water and nutrients
10. Cell Membrane
b. Controls cell activities
11. Chloroplast
c. Controls what enters/leaves the cell
12. Vacuole
d. Makes food for plant cells