A student prepared a slide of onion epidermal cells (plant cells) to view under a light microscope.
Name two pieces of laboratory equipment the student would use to prepare the cell slide.
Below is a diagram of a light microscope:

Name Part X and describe its function.
Compare the structure of a plant cell with the structure of a bacterial cell.
When a plant cell is placed in a highly concentrated salt solution, the cytoplasm shrinks away from the cell wall (plasmolysis). Explain why the cytoplasm shrinks, and why the cell wall prevents the entire cell from collapsing.