Page 78 - Science Course 1 (Book 1)
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Mo3-L3a: What are the Structures of a Cell?
The cytoskeleton is a network of threadlike proteins
that are joined together. Key Concept
What are the Structures of a Cell?
The cytoskeleton maintains the shape of an animal Why are the structures of a
cell. cell important?
Cell appendages, like flagella and cilia, are often
used for movement.
Cilia
Bacterium
Flagellum
The cell wall maintains the shape of a plant cell.
SUMMARY
What are the Structures of a Cell?
Cytoplasm is fluid inside a cell that contains most A cell is protected by a flexible covering called
of the cell’s water, salts, other molecules, and the the cell membrane.
cytoskeleton.
Cell wall and Membrane
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