Animal Cells: Exploring the Building Blocks of Life
This worksheet introduces 6th-grade students to the basic structure and functions of animal cells, including organelles like the nucleus, cytoplasm, and cell membrane.
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Animal Cells: Exploring the Building Blocks of Life
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Read each question carefully and provide your best answer. Refer to the diagram of the animal cell to help you with some questions.
Observe the animal cell diagram below:

1. What is the main function of the nucleus in an animal cell?
To produce energy
To control cell activities
To store water
To provide support
2. Which part of the animal cell acts as a protective barrier and controls what enters and leaves the cell?
Mitochondria
Cytoplasm
Cell membrane
Nucleus
3. The jelly-like substance that fills the cell and surrounds the organelles is called the .
4. Mitochondria are often called the "powerhouses" of the cell because they produce .
5. Animal cells have a cell wall.
True
False
6. All animal cells are exactly the same shape and size.
True
False
7. Briefly explain why animal cells do not have chloroplasts.
8. Name two organelles found in an animal cell and describe one function for each.