1.1 Cell structure

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Question 17
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A student views some plant cells under a microscope.

a.

Name the cellular structure that controls the movement of substances into and out of the cell.

[1]
b.

Name one type of animal cell that does not contain a nucleus.

[1]
c.

A diagram of rectangular plant cells under a microscope. A straight line labeled AB is drawn horizontally across one cell representing its length. The image length of the cell from point A to point B is measured to be 48 mm. The real length of the cell is 0.08 mm.

Calculate the magnification of the image. Use the equation:

magnification=size of imagereal size of object \text{magnification} = \frac{\text{size of image}}{\text{real size of object}} magnification=real size of objectsize of image​
[3]
d.

Give two advantages of using an electron microscope instead of a light microscope.

[2]

1.1 Cell structure Questions

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