1.1 Cell structure

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Question 10
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A student prepared a slide of onion epidermal cells (plant cells) to view under a light microscope.

a.

Name two pieces of laboratory equipment the student would use to prepare the cell slide.

[2]
b.

Below is a diagram of a light microscope:

A simplified schematic of a light microscope with labeling arrows. Part X points directly to an objective lens on the revolving nosepiece. Part Y points to the stage.

Name Part X and describe its function.

[2]
c.

Compare the structure of a plant cell with the structure of a bacterial cell.

[4]
d.

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.

[2]

1.1 Cell structure Questions

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