Educational worksheet illustrating the structure and function of the cell wall and cell membrane in plant cells.

Final Answer:
1. The cell wall provides strength and protection to the plant cell and helps maintain its shape.
2. The cell wall is a rigid outer layer made of cellulose; the cell membrane is a flexible, semi-permeable barrier inside the cell wall that controls what enters and exits the cell.
3. The cell membrane controls which substances enter and leave the cell, allowing some molecules through while blocking others.
4. It’s called a semi-permeable barrier because it lets some substances pass through but not all — like a gate that only opens for certain things.
5. False

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