Lesson 4 of 4 ยท Grade 7 Integrated Science
The cell and forces
18 min
The cell
The cell is the basic unit of life. All living things are made of cells.
Parts of an animal cell:
- Cell membrane: controls what enters and leaves.
- Cytoplasm: jelly-like; chemical reactions take place here.
- Nucleus: controls the cell's activities.
A plant cell has all these plus:
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